1630297152 has 224 divisors, whose sum is σ = 5266944000. Its totient is φ = 490406400.

The previous prime is 1630297111. The next prime is 1630297187. The reversal of 1630297152 is 2517920361.

1630297152 is a `hidden beast` number, since 1 + 630 + 2 + 9 + 7 + 15 + 2 = 666.

It is a super-2 number, since 2×1630297152² = 5315737607638622208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 3782377 + ... + 3782807.

Almost surely, 2^1630297152 is an apocalyptic number.

1630297152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630297152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2633472000).

1630297152 is an abundant number, since it is smaller than the sum of its proper divisors (3636646848).

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

1630297152 is a wasteful number, since it uses less digits than its factorization.

1630297152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1630297152 is about 40376.9383683310. The cubic root of 1630297152 is about 1176.9434328600.

The spelling of 1630297152 in words is "one billion, six hundred thirty million, two hundred ninety-seven thousand, one hundred fifty-two".