632220736 has 63 divisors (see below), whose sum is σ = 1462647189. Its totient is φ = 270348288.

The previous prime is 632220713. The next prime is 632220749. The reversal of 632220736 is 637022236.

The square root of 632220736 is 25144.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 386358336 + 245862400 = 19656^2 + 15680^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 632220698 and 632220707.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1407840 + ... + 1408288.

Almost surely, 2^632220736 is an apocalyptic number.

632220736 is the 25144-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 632220736

632220736 is an abundant number, since it is smaller than the sum of its proper divisors (830426453).

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

632220736 is an frugal number, since it uses more digits than its factorization.

632220736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The cubic root of 632220736 is about 858.2679833700.

The spelling of 632220736 in words is "six hundred thirty-two million, two hundred twenty thousand, seven hundred thirty-six".