1604016428 has 12 divisors (see below), whose sum is σ = 3208032912. Its totient is φ = 687435600.

The previous prime is 1604016377. The next prime is 1604016457. The reversal of 1604016428 is 8246104061.

1604016428 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1604016394 and 1604016403.

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, 28643123 + ... + 28643178.

It is an arithmetic number, because the mean of its divisors is an integer number (267336076).

Almost surely, 2^1604016428 is an apocalyptic number.

It is an amenable number.

1604016428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1604016428 is a wasteful number, since it uses less digits than its factorization.

1604016428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57286312 (or 57286310 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1604016428 is about 40050.1738822692. The cubic root of 1604016428 is about 1170.5849530725.

The spelling of 1604016428 in words is "one billion, six hundred four million, sixteen thousand, four hundred twenty-eight".