1630545792 has 32 divisors (see below), whose sum is σ = 4331138280. Its totient is φ = 543515136.

The previous prime is 1630545773. The next prime is 1630545821. The reversal of 1630545792 is 2975450361.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122723 + ... + 2123490.

Almost surely, 2^1630545792 is an apocalyptic number.

1630545792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1630545792 is an abundant number, since it is smaller than the sum of its proper divisors (2700592488).

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

1630545792 is an equidigital number, since it uses as much as digits as its factorization.

1630545792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246230 (or 4246218 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 1630545792 is about 40380.0172362519. The cubic root of 1630545792 is about 1177.0032625132.

The spelling of 1630545792 in words is "one billion, six hundred thirty million, five hundred forty-five thousand, seven hundred ninety-two".