40622979 has 16 divisors (see below), whose sum is σ = 57497472. Its totient is φ = 25423488.

The previous prime is 40622957. The next prime is 40622983. The reversal of 40622979 is 97922604.

It is not a de Polignac number, because 40622979 - 2⁵ = 40622947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40622999) 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, 25912 + ... + 27434.

It is an arithmetic number, because the mean of its divisors is an integer number (3593592).

Almost surely, 2^40622979 is an apocalyptic number.

40622979 is a deficient number, since it is larger than the sum of its proper divisors (16874493).

40622979 is a wasteful number, since it uses less digits than its factorization.

40622979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 40622979 is about 6373.6158497355. The cubic root of 40622979 is about 343.7615161321.

The spelling of 40622979 in words is "forty million, six hundred twenty-two thousand, nine hundred seventy-nine".