1591604452 has 12 divisors (see below), whose sum is σ = 2795151856. Its totient is φ = 792989640.

The previous prime is 1591604437. The next prime is 1591604453. The reversal of 1591604452 is 2544061951.

It is not an unprimeable number, because it can be changed into a prime (1591604453) 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, 701874 + ... + 704137.

Almost surely, 2^1591604452 is an apocalyptic number.

It is an amenable number.

1591604452 is a deficient number, since it is larger than the sum of its proper divisors (1203547404).

1591604452 is a wasteful number, since it uses less digits than its factorization.

1591604452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406298 (or 1406296 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1591604452 is about 39894.9176211707. The cubic root of 1591604452 is about 1167.5577790858.

The spelling of 1591604452 in words is "one billion, five hundred ninety-one million, six hundred four thousand, four hundred fifty-two".