634526460 has 144 divisors (see below), whose sum is σ = 2012695776. Its totient is φ = 167795712.

The previous prime is 634526437. The next prime is 634526561. The reversal of 634526460 is 64625436.

634526460 is a `hidden beast` number, since 6 + 3 + 4 + 5 + 2 + 646 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 665344 + ... + 666296.

It is an arithmetic number, because the mean of its divisors is an integer number (13977054).

Almost surely, 2^634526460 is an apocalyptic number.

634526460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634526460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006347888).

634526460 is an abundant number, since it is smaller than the sum of its proper divisors (1378169316).

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

634526460 is a wasteful number, since it uses less digits than its factorization.

634526460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 634526460 is about 25189.8086535011. The cubic root of 634526460 is about 859.3100920850.

The spelling of 634526460 in words is "six hundred thirty-four million, five hundred twenty-six thousand, four hundred sixty".