40484840 has 64 divisors (see below), whose sum is σ = 100465920. Its totient is φ = 14560000.

The previous prime is 40484831. The next prime is 40484861. The reversal of 40484840 is 4848404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40484797 and 40484806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43985 + ... + 44895.

It is an arithmetic number, because the mean of its divisors is an integer number (1569780).

Almost surely, 2^40484840 is an apocalyptic number.

40484840 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 40484840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50232960).

40484840 is an abundant number, since it is smaller than the sum of its proper divisors (59981080).

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

40484840 is a wasteful number, since it uses less digits than its factorization.

40484840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 40484840 is about 6362.7698371071. The cubic root of 40484840 is about 343.3714183619.

It can be divided in two parts, 4048 and 4840, that added together give a palindrome (8888).

The spelling of 40484840 in words is "forty million, four hundred eighty-four thousand, eight hundred forty".