39960426 has 32 divisors (see below), whose sum is σ = 90003456. Its totient is φ = 11718000.

The previous prime is 39960413. The next prime is 39960461. The reversal of 39960426 is 62406993.

It is a happy number.

It is a super-2 number, since 2×39960426² = 3193671292202952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7720 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (2812608).

Almost surely, 2^39960426 is an apocalyptic number.

39960426 is an abundant number, since it is smaller than the sum of its proper divisors (50043030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39960426 is a wasteful number, since it uses less digits than its factorization.

39960426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19578.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 39960426 is about 6321.4259467307. The cubic root of 39960426 is about 341.8823678070.

The spelling of 39960426 in words is "thirty-nine million, nine hundred sixty thousand, four hundred twenty-six".