40259952 has 30 divisors (see below), whose sum is σ = 112672352. Its totient is φ = 13419936.

The previous prime is 40259941. The next prime is 40259953. The reversal of 40259952 is 25995204.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40259953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139648 + ... + 139935.

Almost surely, 2^40259952 is an apocalyptic number.

It is an amenable number.

40259952 is an abundant number, since it is smaller than the sum of its proper divisors (72412400).

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

40259952 is a wasteful number, since it uses less digits than its factorization.

40259952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279597 (or 279588 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 40259952 is about 6345.0730492249. The cubic root of 40259952 is about 342.7344429988.

The spelling of 40259952 in words is "forty million, two hundred fifty-nine thousand, nine hundred fifty-two".