40547372 has 12 divisors (see below), whose sum is σ = 71089200. Its totient is φ = 20236176.

The previous prime is 40547369. The next prime is 40547393. The reversal of 40547372 is 27374504.

It is a super-2 number, since 2×40547372² = 3288178752212768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6872 + ... + 11327.

It is an arithmetic number, because the mean of its divisors is an integer number (5924100).

Almost surely, 2^40547372 is an apocalyptic number.

It is an amenable number.

40547372 is a deficient number, since it is larger than the sum of its proper divisors (30541828).

40547372 is a wasteful number, since it uses less digits than its factorization.

40547372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760 (or 18758 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 40547372 is about 6367.6818387856. The cubic root of 40547372 is about 343.5481154177.

The spelling of 40547372 in words is "forty million, five hundred forty-seven thousand, three hundred seventy-two".