40078052 has 24 divisors (see below), whose sum is σ = 83642496. Its totient is φ = 16429248.

The previous prime is 40078039. The next prime is 40078057. The reversal of 40078052 is 25087004.

It is a super-2 number, since 2×40078052² = 3212500504229408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40078057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30473 + ... + 31760.

It is an arithmetic number, because the mean of its divisors is an integer number (3485104).

Almost surely, 2^40078052 is an apocalyptic number.

It is an amenable number.

40078052 is an abundant number, since it is smaller than the sum of its proper divisors (43564444).

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

40078052 is a wasteful number, since it uses less digits than its factorization.

40078052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62267 (or 62265 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 40078052 is about 6330.7228655186. The cubic root of 40078052 is about 342.2174898773.

The spelling of 40078052 in words is "forty million, seventy-eight thousand, fifty-two".