40122579 has 16 divisors (see below), whose sum is σ = 61452800. Its totient is φ = 22809600.

The previous prime is 40122529. The next prime is 40122611. The reversal of 40122579 is 97522104.

It is not a de Polignac number, because 40122579 - 2¹³ = 40114387 is a prime.

It is a super-2 number, since 2×40122579² = 3219642691222482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40122529) 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, 622 + ... + 8979.

It is an arithmetic number, because the mean of its divisors is an integer number (3840800).

Almost surely, 2^40122579 is an apocalyptic number.

40122579 is a deficient number, since it is larger than the sum of its proper divisors (21330221).

40122579 is a wasteful number, since it uses less digits than its factorization.

40122579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9810.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 40122579 is about 6334.2386282804. The cubic root of 40122579 is about 342.3441783243.

The spelling of 40122579 in words is "forty million, one hundred twenty-two thousand, five hundred seventy-nine".