1630807930 has 16 divisors (see below), whose sum is σ = 3014791560. Its totient is φ = 634692672.

The previous prime is 1630807921. The next prime is 1630807949. The reversal of 1630807930 is 397080361.

It can be written as a sum of positive squares in 4 ways, for example, as 1627880409 + 2927521 = 40347^2 + 1711^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 1630807930.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203425 + ... + 2204164.

Almost surely, 2^1630807930 is an apocalyptic number.

1630807930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630807930 is a deficient number, since it is larger than the sum of its proper divisors (1383983630).

1630807930 is a wasteful number, since it uses less digits than its factorization.

1630807930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407633.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 1630807930 is about 40383.2629934729. The cubic root of 1630807930 is about 1177.0663335720.

The spelling of 1630807930 in words is "one billion, six hundred thirty million, eight hundred seven thousand, nine hundred thirty".