634666032 has 720 divisors, whose sum is σ = 2639643552. Its totient is φ = 139345920.

The previous prime is 634666003. The next prime is 634666037. The reversal of 634666032 is 230666436.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (634666037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 17153118 + ... + 17153154.

Almost surely, 2^634666032 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 634666032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1319821776).

634666032 is an abundant number, since it is smaller than the sum of its proper divisors (2004977520).

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

634666032 is a wasteful number, since it uses less digits than its factorization.

634666032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The square root of 634666032 is about 25192.5789072893. The cubic root of 634666032 is about 859.3730927861.

It can be divided in two parts, 634 and 666032, that added together give a palindrome (666666).

The spelling of 634666032 in words is "six hundred thirty-four million, six hundred sixty-six thousand, thirty-two".