634623132 has 48 divisors (see below), whose sum is σ = 1739670912. Its totient is φ = 177516480.

The previous prime is 634623127. The next prime is 634623137. The reversal of 634623132 is 231326436.

634623132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (634623127) and next prime (634623137).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 634623132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634623137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183198 + ... + 186629.

It is an arithmetic number, because the mean of its divisors is an integer number (36243144).

Almost surely, 2^634623132 is an apocalyptic number.

It is an amenable number.

634623132 is an abundant number, since it is smaller than the sum of its proper divisors (1105047780).

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

634623132 is a wasteful number, since it uses less digits than its factorization.

634623132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369858 (or 369856 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 634623132 is about 25191.7274516854. The cubic root of 634623132 is about 859.3537293547.

Adding to 634623132 its reverse (231326436), we get a palindrome (865949568).

The spelling of 634623132 in words is "six hundred thirty-four million, six hundred twenty-three thousand, one hundred thirty-two".