630348544 has 108 divisors (see below), whose sum is σ = 1511807808. Its totient is φ = 261273600.

The previous prime is 630348527. The next prime is 630348577. The reversal of 630348544 is 445843036.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 388054 + ... + 389674.

Almost surely, 2^630348544 is an apocalyptic number.

630348544 is a gapful number since it is divisible by the number (64) 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 630348544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755903904).

630348544 is an abundant number, since it is smaller than the sum of its proper divisors (881459264).

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

630348544 is a wasteful number, since it uses less digits than its factorization.

630348544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 630348544 is about 25106.7429986448. The cubic root of 630348544 is about 857.4199508782.

The spelling of 630348544 in words is "six hundred thirty million, three hundred forty-eight thousand, five hundred forty-four".