40774840 has 64 divisors (see below), whose sum is σ = 98832960. Its totient is φ = 15083520.

The previous prime is 40774831. The next prime is 40774843. The reversal of 40774840 is 4847704.

40774840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 40774796 and 40774805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40774843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40989 + ... + 41971.

It is an arithmetic number, because the mean of its divisors is an integer number (1544265).

Almost surely, 2^40774840 is an apocalyptic number.

40774840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40774840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49416480).

40774840 is an abundant number, since it is smaller than the sum of its proper divisors (58058120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40774840 is a wasteful number, since it uses less digits than its factorization.

40774840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 40774840 is about 6385.5179899520. The cubic root of 40774840 is about 344.1893450132.

It can be divided in two parts, 40774 and 840, that added together give a palindrome (41614).

The spelling of 40774840 in words is "forty million, seven hundred seventy-four thousand, eight hundred forty".