1630626144 has 48 divisors (see below), whose sum is σ = 4891880448. Its totient is φ = 465892992.

The previous prime is 1630626073. The next prime is 1630626167. The reversal of 1630626144 is 4416260361.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212592 + ... + 1213935.

It is an arithmetic number, because the mean of its divisors is an integer number (101914176).

Almost surely, 2^1630626144 is an apocalyptic number.

1630626144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1630626144 is an abundant number, since it is smaller than the sum of its proper divisors (3261254304).

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

1630626144 is a wasteful number, since it uses less digits than its factorization.

1630626144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426547 (or 2426539 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1630626144 is about 40381.0121715640. The cubic root of 1630626144 is about 1177.0225961239.

The spelling of 1630626144 in words is "one billion, six hundred thirty million, six hundred twenty-six thousand, one hundred forty-four".