630481776 has 80 divisors (see below), whose sum is σ = 1684558848. Its totient is φ = 203040000.

The previous prime is 630481711. The next prime is 630481777. The reversal of 630481776 is 677184036.

It is a super-2 number, since 2×630481776² = 795014539736228352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630481777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267001 + ... + 269351.

Almost surely, 2^630481776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630481776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842279424).

630481776 is an abundant number, since it is smaller than the sum of its proper divisors (1054077072).

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

630481776 is a wasteful number, since it uses less digits than its factorization.

630481776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550 (or 2544 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 630481776 is about 25109.3961695617. The cubic root of 630481776 is about 857.4803554108.

The spelling of 630481776 in words is "six hundred thirty million, four hundred eighty-one thousand, seven hundred seventy-six".