40879415 has 8 divisors (see below), whose sum is σ = 50747040. Its totient is φ = 31575712.

The previous prime is 40879411. The next prime is 40879439. The reversal of 40879415 is 51497804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40879415 - 2² = 40879411 is a prime.

It is a super-2 number, since 2×40879415² = 3342253141484450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40879411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140819 + ... + 141108.

It is an arithmetic number, because the mean of its divisors is an integer number (6343380).

Almost surely, 2^40879415 is an apocalyptic number.

40879415 is a deficient number, since it is larger than the sum of its proper divisors (9867625).

40879415 is a wasteful number, since it uses less digits than its factorization.

40879415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281961.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 40879415 is about 6393.7011972722. The cubic root of 40879415 is about 344.4833406378.

The spelling of 40879415 in words is "forty million, eight hundred seventy-nine thousand, four hundred fifteen".