1630440744 has 32 divisors (see below), whose sum is σ = 4253325120. Its totient is φ = 519850496.

The previous prime is 1630440739. The next prime is 1630440821. The reversal of 1630440744 is 4470440361.

It is an unprimeable number.

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, 1476297 + ... + 1477400.

It is an arithmetic number, because the mean of its divisors is an integer number (132916410).

Almost surely, 2^1630440744 is an apocalyptic number.

It is an amenable number.

1630440744 is an abundant number, since it is smaller than the sum of its proper divisors (2622884376).

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

1630440744 is a wasteful number, since it uses less digits than its factorization.

1630440744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953729 (or 2953725 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 1630440744 is about 40378.7164729143. The cubic root of 1630440744 is about 1176.9779858043.

The spelling of 1630440744 in words is "one billion, six hundred thirty million, four hundred forty thousand, seven hundred forty-four".