40879520 has 48 divisors (see below), whose sum is σ = 105362208. Its totient is φ = 14864640.

The previous prime is 40879511. The next prime is 40879529. The reversal of 40879520 is 2597804.

It is a happy number.

40879520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40879511) and next prime (40879529).

It is a super-2 number, since 2×40879520² = 3342270310860800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40879529) 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 in 7 ways as a sum of consecutive naturals, for example, 9854 + ... + 13373.

It is an arithmetic number, because the mean of its divisors is an integer number (2195046).

Almost surely, 2^40879520 is an apocalyptic number.

40879520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40879520 is an abundant number, since it is smaller than the sum of its proper divisors (64482688).

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

40879520 is a wasteful number, since it uses less digits than its factorization.

40879520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23253 (or 23245 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 40879520 is about 6393.7094084733. The cubic root of 40879520 is about 344.4836355761.

The spelling of 40879520 in words is "forty million, eight hundred seventy-nine thousand, five hundred twenty".