632407720 has 96 divisors (see below), whose sum is σ = 1662202080. Its totient is φ = 215913600.

The previous prime is 632407693. The next prime is 632407729. The reversal of 632407720 is 27704236.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (632407729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601195 + ... + 602245.

It is an arithmetic number, because the mean of its divisors is an integer number (17314605).

Almost surely, 2^632407720 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 632407720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831101040).

632407720 is an abundant number, since it is smaller than the sum of its proper divisors (1029794360).

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

632407720 is a wasteful number, since it uses less digits than its factorization.

632407720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 632407720 is about 25147.7179879209. The cubic root of 632407720 is about 858.3525880831.

The spelling of 632407720 in words is "six hundred thirty-two million, four hundred seven thousand, seven hundred twenty".