1630351140 has 48 divisors (see below), whose sum is σ = 4979983680. Its totient is φ = 395236480.

The previous prime is 1630351123. The next prime is 1630351141. The reversal of 1630351140 is 411530361.

It is a self number, because there is not a number n which added to its sum of digits gives 1630351140.

It is not an unprimeable number, because it can be changed into a prime (1630351141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1234455 + ... + 1235774.

It is an arithmetic number, because the mean of its divisors is an integer number (103749660).

Almost surely, 2^1630351140 is an apocalyptic number.

1630351140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630351140 is an abundant number, since it is smaller than the sum of its proper divisors (3349632540).

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

1630351140 is a wasteful number, since it uses less digits than its factorization.

1630351140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470252 (or 2470250 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1630351140 is about 40377.6069127431. The cubic root of 1630351140 is about 1176.9564243813.

The spelling of 1630351140 in words is "one billion, six hundred thirty million, three hundred fifty-one thousand, one hundred forty".