634294290 has 128 divisors (see below), whose sum is σ = 1874442240. Its totient is φ = 134120448.

The previous prime is 634294279. The next prime is 634294303. The reversal of 634294290 is 92492436.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169722 + ... + 173418.

It is an arithmetic number, because the mean of its divisors is an integer number (14644080).

Almost surely, 2^634294290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634294290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937221120).

634294290 is an abundant number, since it is smaller than the sum of its proper divisors (1240147950).

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

634294290 is a wasteful number, since it uses less digits than its factorization.

634294290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 634294290 is about 25185.1998205295. The cubic root of 634294290 is about 859.2052735711.

The spelling of 634294290 in words is "six hundred thirty-four million, two hundred ninety-four thousand, two hundred ninety".