630706384 has 160 divisors (see below), whose sum is σ = 1599897600. Its totient is φ = 233694720.

The previous prime is 630706369. The next prime is 630706393. The reversal of 630706384 is 483607036.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4537387 + ... + 4537525.

It is an arithmetic number, because the mean of its divisors is an integer number (9999360).

Almost surely, 2^630706384 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 630706384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799948800).

630706384 is an abundant number, since it is smaller than the sum of its proper divisors (969191216).

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

630706384 is a wasteful number, since it uses less digits than its factorization.

630706384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 630706384 is about 25113.8683599321. The cubic root of 630706384 is about 857.5821686002.

The spelling of 630706384 in words is "six hundred thirty million, seven hundred six thousand, three hundred eighty-four".