1630213932 has 48 divisors (see below), whose sum is σ = 3945426912. Its totient is φ = 523468800.

The previous prime is 1630213931. The next prime is 1630213939. The reversal of 1630213932 is 2393120361.

It is a self number, because there is not a number n which added to its sum of digits gives 1630213932.

It is not an unprimeable number, because it can be changed into a prime (1630213931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26668 + ... + 63020.

It is an arithmetic number, because the mean of its divisors is an integer number (82196394).

Almost surely, 2^1630213932 is an apocalyptic number.

1630213932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1630213932 is an abundant number, since it is smaller than the sum of its proper divisors (2315212980).

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

1630213932 is a wasteful number, since it uses less digits than its factorization.

1630213932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36498 (or 36496 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 1630213932 is about 40375.9078164194. The cubic root of 1630213932 is about 1176.9234064701.

The spelling of 1630213932 in words is "one billion, six hundred thirty million, two hundred thirteen thousand, nine hundred thirty-two".