1630872704 has 16 divisors (see below), whose sum is σ = 3249004470. Its totient is φ = 815436288.

The previous prime is 1630872701. The next prime is 1630872743. The reversal of 1630872704 is 4072780361.

It can be written as a sum of positive squares in only one way, i.e., 1455575104 + 175297600 = 38152^2 + 13240^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1630872701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6370469 + ... + 6370724.

Almost surely, 2^1630872704 is an apocalyptic number.

It is an amenable number.

1630872704 is a deficient number, since it is larger than the sum of its proper divisors (1618131766).

1630872704 is an equidigital number, since it uses as much as digits as its factorization.

1630872704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12741207 (or 12741195 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1630872704 is about 40384.0649761759. The cubic root of 1630872704 is about 1177.0819173171.

The spelling of 1630872704 in words is "one billion, six hundred thirty million, eight hundred seventy-two thousand, seven hundred four".