632638 has 16 divisors (see below), whose sum is σ = 1049760. Its totient is φ = 284416.

The previous prime is 632629. The next prime is 632647. The reversal of 632638 is 836236.

It is an interprime number because it is at equal distance from previous prime (632629) and next prime (632647).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378 + ... + 1186.

It is an arithmetic number, because the mean of its divisors is an integer number (65610).

2⁶³²⁶³⁸ is an apocalyptic number.

632638 is a deficient number, since it is larger than the sum of its proper divisors (417122).

632638 is a wasteful number, since it uses less digits than its factorization.

632638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851.

The product of its digits is 5184, while the sum is 28.

The square root of 632638 is about 795.3854411542. The cubic root of 632638 is about 85.8456760039.

It can be divided in two parts, 63 and 2638, that added together give a triangular number (2701 = T₇₃).

The spelling of 632638 in words is "six hundred thirty-two thousand, six hundred thirty-eight".