40878879 has 12 divisors (see below), whose sum is σ = 54990936. Its totient is φ = 27011152.

The previous prime is 40878833. The next prime is 40878881. The reversal of 40878879 is 97887804.

It is not a de Polignac number, because 40878879 - 2⁸ = 40878623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40878979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155302 + ... + 155564.

It is an arithmetic number, because the mean of its divisors is an integer number (4582578).

Almost surely, 2^40878879 is an apocalyptic number.

40878879 is a deficient number, since it is larger than the sum of its proper divisors (14112057).

40878879 is an equidigital number, since it uses as much as digits as its factorization.

40878879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 51.

The square root of 40878879 is about 6393.6592808813. The cubic root of 40878879 is about 344.4818350399.

The spelling of 40878879 in words is "forty million, eight hundred seventy-eight thousand, eight hundred seventy-nine".