40984056 has 40 divisors (see below), whose sum is σ = 114795120. Its totient is φ = 13661136.

The previous prime is 40984037. The next prime is 40984057. The reversal of 40984056 is 65048904.

It is a super-2 number, since 2×40984056² = 3359385692422272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40984056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40984057) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30976 + ... + 32271.

It is an arithmetic number, because the mean of its divisors is an integer number (2869878).

Almost surely, 2^40984056 is an apocalyptic number.

It is an amenable number.

40984056 is an abundant number, since it is smaller than the sum of its proper divisors (73811064).

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

40984056 is a wasteful number, since it uses less digits than its factorization.

40984056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63265 (or 63252 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 40984056 is about 6401.8790991396. The cubic root of 40984056 is about 344.7770203766. Note that the first 3 decimals are identical.

The spelling of 40984056 in words is "forty million, nine hundred eighty-four thousand, fifty-six".