404004426 has 32 divisors (see below), whose sum is σ = 929568768. Its totient is φ = 114663600.

The previous prime is 404004401. The next prime is 404004451. The reversal of 404004426 is 624400404.

It is an interprime number because it is at equal distance from previous prime (404004401) and next prime (404004451).

It is a junction number, because it is equal to n+sod(n) for n = 404004396 and 404004405.

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, 25510 + ... + 38193.

It is an arithmetic number, because the mean of its divisors is an integer number (29049024).

Almost surely, 2^404004426 is an apocalyptic number.

404004426 is an abundant number, since it is smaller than the sum of its proper divisors (525564342).

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

404004426 is a wasteful number, since it uses less digits than its factorization.

404004426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63866.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 404004426 is about 20099.8613428053. The cubic root of 404004426 is about 739.2568787811.

The spelling of 404004426 in words is "four hundred four million, four thousand, four hundred twenty-six".