634162890 has 32 divisors (see below), whose sum is σ = 1523514816. Its totient is φ = 168940800.

The previous prime is 634162889. The next prime is 634162913. The reversal of 634162890 is 98261436.

634162890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21474 + ... + 41586.

It is an arithmetic number, because the mean of its divisors is an integer number (47609838).

Almost surely, 2^634162890 is an apocalyptic number.

634162890 is an abundant number, since it is smaller than the sum of its proper divisors (889351926).

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

634162890 is a wasteful number, since it uses less digits than its factorization.

634162890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21174.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 634162890 is about 25182.5910104580. The cubic root of 634162890 is about 859.1459386684.

The spelling of 634162890 in words is "six hundred thirty-four million, one hundred sixty-two thousand, eight hundred ninety".