1604322896 has 20 divisors (see below), whose sum is σ = 3390955584. Its totient is φ = 729237600.

The previous prime is 1604322883. The next prime is 1604322899. The reversal of 1604322896 is 6982234061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604322899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4557560 + ... + 4557911.

Almost surely, 2^1604322896 is an apocalyptic number.

1604322896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1604322896 is an abundant number, since it is smaller than the sum of its proper divisors (1786632688).

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

1604322896 is a wasteful number, since it uses less digits than its factorization.

1604322896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9115490 (or 9115484 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 1604322896 is about 40053.9997503370. Note that the first 3 decimals coincide. The cubic root of 1604322896 is about 1170.6595001029.

The spelling of 1604322896 in words is "one billion, six hundred four million, three hundred twenty-two thousand, eight hundred ninety-six".