634326090 has 16 divisors (see below), whose sum is σ = 1522382688. Its totient is φ = 169153616.

The previous prime is 634326071. The next prime is 634326109. The reversal of 634326090 is 90623436.

It is an interprime number because it is at equal distance from previous prime (634326071) and next prime (634326109).

It is a super-3 number, since 3×634326090³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10572072 + ... + 10572131.

It is an arithmetic number, because the mean of its divisors is an integer number (95148918).

Almost surely, 2^634326090 is an apocalyptic number.

634326090 is an abundant number, since it is smaller than the sum of its proper divisors (888056598).

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

634326090 is a wasteful number, since it uses less digits than its factorization.

634326090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21144213.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 634326090 is about 25185.8311357795. The cubic root of 634326090 is about 859.2196319278.

The spelling of 634326090 in words is "six hundred thirty-four million, three hundred twenty-six thousand, ninety".