1630750140 has 72 divisors (see below), whose sum is σ = 5161691808. Its totient is φ = 415958400.

The previous prime is 1630750123. The next prime is 1630750171. The reversal of 1630750140 is 410570361.

It is a super-2 number, since 2×1630750140² = 5318692038220039200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192811 + ... + 201090.

It is an arithmetic number, because the mean of its divisors is an integer number (71690164).

Almost surely, 2^1630750140 is an apocalyptic number.

1630750140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630750140 is an abundant number, since it is smaller than the sum of its proper divisors (3530941668).

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

1630750140 is a wasteful number, since it uses less digits than its factorization.

1630750140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393939 (or 393934 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1630750140 is about 40382.5474679347. The cubic root of 1630750140 is about 1177.0524297342.

The spelling of 1630750140 in words is "one billion, six hundred thirty million, seven hundred fifty thousand, one hundred forty".