1630624880 has 40 divisors (see below), whose sum is σ = 3809210064. Its totient is φ = 649152000.

The previous prime is 1630624867. The next prime is 1630624883. The reversal of 1630624880 is 884260361.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630624883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31421 + ... + 65180.

Almost surely, 2^1630624880 is an apocalyptic number.

1630624880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630624880 is an abundant number, since it is smaller than the sum of its proper divisors (2178585184).

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

1630624880 is a wasteful number, since it uses less digits than its factorization.

1630624880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96825 (or 96819 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1630624880 is about 40380.9965206407. The cubic root of 1630624880 is about 1177.0222919959.

The spelling of 1630624880 in words is "one billion, six hundred thirty million, six hundred twenty-four thousand, eight hundred eighty".