1630661452 has 24 divisors (see below), whose sum is σ = 3403120896. Its totient is φ = 668469648.

The previous prime is 1630661449. The next prime is 1630661467. The reversal of 1630661452 is 2541660361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265398 + ... + 1266685.

It is an arithmetic number, because the mean of its divisors is an integer number (141796704).

Almost surely, 2^1630661452 is an apocalyptic number.

It is an amenable number.

1630661452 is an abundant number, since it is smaller than the sum of its proper divisors (1772459444).

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

1630661452 is a wasteful number, since it uses less digits than its factorization.

1630661452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532117 (or 2532115 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1630661452 is about 40381.4493548709. The cubic root of 1630661452 is about 1177.0310914319.

The spelling of 1630661452 in words is "one billion, six hundred thirty million, six hundred sixty-one thousand, four hundred fifty-two".