40572969 has 4 divisors (see below), whose sum is σ = 54097296. Its totient is φ = 27048644.

The previous prime is 40572953. The next prime is 40572971. The reversal of 40572969 is 96927504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40572969 - 2⁴ = 40572953 is a prime.

It is a super-2 number, since 2×40572969² = 3292331626949922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40572969.

It is not an unprimeable number, because it can be changed into a prime (40572949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6762159 + ... + 6762164.

It is an arithmetic number, because the mean of its divisors is an integer number (13524324).

Almost surely, 2^40572969 is an apocalyptic number.

It is an amenable number.

40572969 is a deficient number, since it is larger than the sum of its proper divisors (13524327).

40572969 is a wasteful number, since it uses less digits than its factorization.

40572969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13524326.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 40572969 is about 6369.6914367966. The cubic root of 40572969 is about 343.6203926156.

The spelling of 40572969 in words is "forty million, five hundred seventy-two thousand, nine hundred sixty-nine".