630304380 has 72 divisors (see below), whose sum is σ = 1930542432. Its totient is φ = 166444416.

The previous prime is 630304379. The next prime is 630304403. The reversal of 630304380 is 83403036.

It is a super-2 number, since 2×630304380² = 794567222894368800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1542 + ... + 35538.

Almost surely, 2^630304380 is an apocalyptic number.

630304380 is a gapful number since it is divisible by the number (60) 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 630304380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965271216).

630304380 is an abundant number, since it is smaller than the sum of its proper divisors (1300238052).

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

630304380 is a wasteful number, since it uses less digits than its factorization.

630304380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34115 (or 34110 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 630304380 is about 25105.8634585628. The cubic root of 630304380 is about 857.3999259891.

The spelling of 630304380 in words is "six hundred thirty million, three hundred four thousand, three hundred eighty".