634543406 has 8 divisors (see below), whose sum is σ = 1087788720. Its totient is φ = 271947168.

The previous prime is 634543397. The next prime is 634543417. The reversal of 634543406 is 604345436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22662251 + ... + 22662278.

It is an arithmetic number, because the mean of its divisors is an integer number (135973590).

Almost surely, 2^634543406 is an apocalyptic number.

634543406 is a deficient number, since it is larger than the sum of its proper divisors (453245314).

634543406 is a wasteful number, since it uses less digits than its factorization.

634543406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45324538.

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 634543406 is about 25190.1450174468. The cubic root of 634543406 is about 859.3177417472.

The spelling of 634543406 in words is "six hundred thirty-four million, five hundred forty-three thousand, four hundred six".