632748538 has 24 divisors (see below), whose sum is σ = 998207028. Its totient is φ = 300782592.

The previous prime is 632748499. The next prime is 632748539. The reversal of 632748538 is 835847236.

It can be written as a sum of positive squares in 2 ways, for example, as 627352209 + 5396329 = 25047^2 + 2323^2 .

It is a super-2 number, since 2×632748538² = 800741424682274888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (632748539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181306 + ... + 184762.

Almost surely, 2^632748538 is an apocalyptic number.

632748538 is a deficient number, since it is larger than the sum of its proper divisors (365458490).

632748538 is a wasteful number, since it uses less digits than its factorization.

632748538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678 (or 3655 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 632748538 is about 25154.4933958130. The cubic root of 632748538 is about 858.5067552268.

The spelling of 632748538 in words is "six hundred thirty-two million, seven hundred forty-eight thousand, five hundred thirty-eight".