634746396 has 24 divisors (see below), whose sum is σ = 1521105040. Its totient is φ = 205863552.

The previous prime is 634746389. The next prime is 634746397. The reversal of 634746396 is 693647436.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634746397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714361 + ... + 715248.

Almost surely, 2^634746396 is an apocalyptic number.

It is an amenable number.

634746396 is an abundant number, since it is smaller than the sum of its proper divisors (886358644).

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

634746396 is a wasteful number, since it uses less digits than its factorization.

634746396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429653 (or 1429651 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 48.

The square root of 634746396 is about 25194.1738503171. The cubic root of 634746396 is about 859.4093636965.

The spelling of 634746396 in words is "six hundred thirty-four million, seven hundred forty-six thousand, three hundred ninety-six".