40869879 has 8 divisors (see below), whose sum is σ = 54738432. Its totient is φ = 27123960.

The previous prime is 40869869. The next prime is 40869889. The reversal of 40869879 is 97896804.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40869869) and next prime (40869889).

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

It is not a de Polignac number, because 40869879 - 2⁴ = 40869863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40869809) 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, 29877 + ... + 31214.

It is an arithmetic number, because the mean of its divisors is an integer number (6842304).

Almost surely, 2^40869879 is an apocalyptic number.

40869879 is a deficient number, since it is larger than the sum of its proper divisors (13868553).

40869879 is a wasteful number, since it uses less digits than its factorization.

40869879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61317.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 40869879 is about 6392.9554198352. The cubic root of 40869879 is about 344.4565525130.

The spelling of 40869879 in words is "forty million, eight hundred sixty-nine thousand, eight hundred seventy-nine".