404428426 has 8 divisors (see below), whose sum is σ = 623038500. Its totient is φ = 196748928.

The previous prime is 404428411. The next prime is 404428439. The reversal of 404428426 is 624824404.

It can be written as a sum of positive squares in 2 ways, for example, as 404050201 + 378225 = 20101^2 + 615^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 404428391 and 404428400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732551 + ... + 2732698.

Almost surely, 2^404428426 is an apocalyptic number.

404428426 is a deficient number, since it is larger than the sum of its proper divisors (218610074).

404428426 is a wasteful number, since it uses less digits than its factorization.

404428426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465288.

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 404428426 is about 20110.4059133574. The cubic root of 404428426 is about 739.5154034470.

The spelling of 404428426 in words is "four hundred four million, four hundred twenty-eight thousand, four hundred twenty-six".