632567988 has 192 divisors, whose sum is σ = 1941811200. Its totient is φ = 176204160.

The previous prime is 632567959. The next prime is 632568017. The reversal of 632567988 is 889765236.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (632567959) and next prime (632568017).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 613033 + ... + 614063.

It is an arithmetic number, because the mean of its divisors is an integer number (10113600).

Almost surely, 2^632567988 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 632567988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970905600).

632567988 is an abundant number, since it is smaller than the sum of its proper divisors (1309243212).

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

632567988 is a wasteful number, since it uses less digits than its factorization.

632567988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 1091 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 632567988 is about 25150.9043177378. The cubic root of 632567988 is about 858.4250913268.

The spelling of 632567988 in words is "six hundred thirty-two million, five hundred sixty-seven thousand, nine hundred eighty-eight".