40072356 has 72 divisors (see below), whose sum is σ = 104255424. Its totient is φ = 12974400.

The previous prime is 40072343. The next prime is 40072379. The reversal of 40072356 is 65327004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374455 + ... + 374561.

It is an arithmetic number, because the mean of its divisors is an integer number (1447992).

Almost surely, 2^40072356 is an apocalyptic number.

It is an amenable number.

40072356 is an abundant number, since it is smaller than the sum of its proper divisors (64183068).

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

40072356 is a wasteful number, since it uses less digits than its factorization.

40072356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 40072356 is about 6330.2729798959. The cubic root of 40072356 is about 342.2012768207.

The spelling of 40072356 in words is "forty million, seventy-two thousand, three hundred fifty-six".