634429134 has 24 divisors (see below), whose sum is σ = 1380660840. Its totient is φ = 210543408.

The previous prime is 634429129. The next prime is 634429139. The reversal of 634429134 is 431924436.

It is a happy number.

634429134 is a `hidden beast` number, since 634 + 4 + 2 + 9 + 13 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (634429129) and next prime (634429139).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634429139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73549 + ... + 81720.

It is an arithmetic number, because the mean of its divisors is an integer number (57527535).

Almost surely, 2^634429134 is an apocalyptic number.

634429134 is an abundant number, since it is smaller than the sum of its proper divisors (746231706).

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

634429134 is a wasteful number, since it uses less digits than its factorization.

634429134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155504 (or 155501 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 634429134 is about 25187.8767267112. The cubic root of 634429134 is about 859.2661551254.

The spelling of 634429134 in words is "six hundred thirty-four million, four hundred twenty-nine thousand, one hundred thirty-four".