1630676420 has 24 divisors (see below), whose sum is σ = 3433766784. Its totient is φ = 650490336.

The previous prime is 1630676419. The next prime is 1630676447. The reversal of 1630676420 is 246760361.

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, 103742 + ... + 118421.

It is an arithmetic number, because the mean of its divisors is an integer number (143073616).

Almost surely, 2^1630676420 is an apocalyptic number.

1630676420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630676420 is an abundant number, since it is smaller than the sum of its proper divisors (1803090364).

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

1630676420 is a wasteful number, since it uses less digits than its factorization.

1630676420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222539 (or 222537 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1630676420 is about 40381.6346870703. The cubic root of 1630676420 is about 1177.0346927818.

The spelling of 1630676420 in words is "one billion, six hundred thirty million, six hundred seventy-six thousand, four hundred twenty".