40872579 has 16 divisors (see below), whose sum is σ = 60044544. Its totient is φ = 24524000.

The previous prime is 40872577. The next prime is 40872581. The reversal of 40872579 is 97527804.

It is an interprime number because it is at equal distance from previous prime (40872577) and next prime (40872581).

It is a cyclic number.

It is not a de Polignac number, because 40872579 - 2¹ = 40872577 is a prime.

It is a super-3 number, since 3×40872579³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 40872579.

It is not an unprimeable number, because it can be changed into a prime (40872577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2799 + ... + 9464.

It is an arithmetic number, because the mean of its divisors is an integer number (3752784).

Almost surely, 2^40872579 is an apocalyptic number.

40872579 is a deficient number, since it is larger than the sum of its proper divisors (19171965).

40872579 is a wasteful number, since it uses less digits than its factorization.

40872579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 40872579 is about 6393.1665862857. The cubic root of 40872579 is about 344.4641376608.

It can be divided in two parts, 408725 and 79, that added together give a palindrome (408804).

The spelling of 40872579 in words is "forty million, eight hundred seventy-two thousand, five hundred seventy-nine".