40734780 has 96 divisors (see below), whose sum is σ = 119508480. Its totient is φ = 10356480.

The previous prime is 40734769. The next prime is 40734787. The reversal of 40734780 is 8743704.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40734787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130825 + ... + 131135.

It is an arithmetic number, because the mean of its divisors is an integer number (1244880).

Almost surely, 2^40734780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40734780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59754240).

40734780 is an abundant number, since it is smaller than the sum of its proper divisors (78773700).

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

40734780 is a wasteful number, since it uses less digits than its factorization.

40734780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 40734780 is about 6382.3804336627. The cubic root of 40734780 is about 344.0765896708.

It can be divided in two parts, 40734 and 780, that added together give a palindrome (41514).

The spelling of 40734780 in words is "forty million, seven hundred thirty-four thousand, seven hundred eighty".