634144472 has 64 divisors (see below), whose sum is σ = 1362160800. Its totient is φ = 274176000.

The previous prime is 634144457. The next prime is 634144487. The reversal of 634144472 is 274441436.

It is an interprime number because it is at equal distance from previous prime (634144457) and next prime (634144487).

It is a super-2 number, since 2×634144472² = 804278422736317568, which contains 22 as substring.

It is a congruent number.

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, 443054 + ... + 444482.

Almost surely, 2^634144472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634144472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681080400).

634144472 is an abundant number, since it is smaller than the sum of its proper divisors (728016328).

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

634144472 is a wasteful number, since it uses less digits than its factorization.

634144472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716 (or 1712 counting only the distinct ones).

The product of its digits is 64512, while the sum is 35.

The square root of 634144472 is about 25182.2253186648. The cubic root of 634144472 is about 859.1376211928.

The spelling of 634144472 in words is "six hundred thirty-four million, one hundred forty-four thousand, four hundred seventy-two".