1630605276 has 48 divisors (see below), whose sum is σ = 4249453600. Its totient is φ = 540711936.

The previous prime is 1630605253. The next prime is 1630605293. The reversal of 1630605276 is 6725060361.

1630605276 is a `hidden beast` number, since 16 + 30 + 605 + 2 + 7 + 6 = 666.

It is a super-2 number, since 2×1630605276² = 5317747132238072352, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1630605276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18271 + ... + 59958.

Almost surely, 2^1630605276 is an apocalyptic number.

It is an amenable number.

1630605276 is an abundant number, since it is smaller than the sum of its proper divisors (2618848324).

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

1630605276 is a wasteful number, since it uses less digits than its factorization.

1630605276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78435 (or 78427 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1630605276 is about 40380.7537819690. The cubic root of 1630605276 is about 1177.0175751053.

The spelling of 1630605276 in words is "one billion, six hundred thirty million, six hundred five thousand, two hundred seventy-six".