632023638 has 48 divisors (see below), whose sum is σ = 1346819760. Its totient is φ = 197681472.

The previous prime is 632023633. The next prime is 632023643. The reversal of 632023638 is 836320236.

It is an interprime number because it is at equal distance from previous prime (632023633) and next prime (632023643).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 632023599 and 632023608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632023631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234756 + ... + 237432.

It is an arithmetic number, because the mean of its divisors is an integer number (28058745).

Almost surely, 2^632023638 is an apocalyptic number.

632023638 is an abundant number, since it is smaller than the sum of its proper divisors (714796122).

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

632023638 is a wasteful number, since it uses less digits than its factorization.

632023638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 632023638 is about 25140.0803101343. The cubic root of 632023638 is about 858.1787843105.

The spelling of 632023638 in words is "six hundred thirty-two million, twenty-three thousand, six hundred thirty-eight".