634360436 has 6 divisors (see below), whose sum is σ = 1110130770. Its totient is φ = 317180216.

The previous prime is 634360403. The next prime is 634360477. The reversal of 634360436 is 634063436.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 604176400 + 30184036 = 24580^2 + 5494^2 .

It is a super-3 number, since 3×634360436³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 634360396 and 634360405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79295051 + ... + 79295058.

It is an arithmetic number, because the mean of its divisors is an integer number (185021795).

Almost surely, 2^634360436 is an apocalyptic number.

It is an amenable number.

634360436 is a deficient number, since it is larger than the sum of its proper divisors (475770334).

634360436 is a wasteful number, since it uses less digits than its factorization.

634360436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158590113 (or 158590111 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 634360436 is about 25186.5129781794. The cubic root of 634360436 is about 859.2351393171.

The spelling of 634360436 in words is "six hundred thirty-four million, three hundred sixty thousand, four hundred thirty-six".