40572872 has 8 divisors (see below), whose sum is σ = 76074150. Its totient is φ = 20286432.

The previous prime is 40572871. The next prime is 40572877. The reversal of 40572872 is 27827504.

40572872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30625156 + 9947716 = 5534^2 + 3154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (40572871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535797 + ... + 2535812.

Almost surely, 2^40572872 is an apocalyptic number.

It is an amenable number.

40572872 is a deficient number, since it is larger than the sum of its proper divisors (35501278).

40572872 is a wasteful number, since it uses less digits than its factorization.

40572872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071615 (or 5071611 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 40572872 is about 6369.6838226085. The cubic root of 40572872 is about 343.6201187781.

The spelling of 40572872 in words is "forty million, five hundred seventy-two thousand, eight hundred seventy-two".