1604390348 has 48 divisors (see below), whose sum is σ = 3134031264. Its totient is φ = 712458240.

The previous prime is 1604390327. The next prime is 1604390383. The reversal of 1604390348 is 8430934061.

It is a super-2 number, since 2×1604390348² = 5148136777511122208, 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, 597986 + ... + 600662.

It is an arithmetic number, because the mean of its divisors is an integer number (65292318).

Almost surely, 2^1604390348 is an apocalyptic number.

It is an amenable number.

1604390348 is a deficient number, since it is larger than the sum of its proper divisors (1529640916).

1604390348 is a wasteful number, since it uses less digits than its factorization.

1604390348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1604390348 is about 40054.8417547742. The cubic root of 1604390348 is about 1170.6759062387.

The spelling of 1604390348 in words is "one billion, six hundred four million, three hundred ninety thousand, three hundred forty-eight".