40572216 has 24 divisors (see below), whose sum is σ = 109883280. Its totient is φ = 13524048.

The previous prime is 40572197. The next prime is 40572229. The reversal of 40572216 is 61227504.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×40572216² = 3292209422301312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40572216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281680 + ... + 281823.

It is an arithmetic number, because the mean of its divisors is an integer number (4578470).

Almost surely, 2^40572216 is an apocalyptic number.

It is an amenable number.

40572216 is an abundant number, since it is smaller than the sum of its proper divisors (69311064).

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

40572216 is a wasteful number, since it uses less digits than its factorization.

40572216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563515 (or 563508 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40572216 is about 6369.6323284786. The cubic root of 40572216 is about 343.6182668345.

The spelling of 40572216 in words is "forty million, five hundred seventy-two thousand, two hundred sixteen".