632389994 has 8 divisors (see below), whose sum is σ = 950839428. Its totient is φ = 315443520.

The previous prime is 632389981. The next prime is 632389997. The reversal of 632389994 is 499983236.

It can be written as a sum of positive squares in 2 ways, for example, as 411481225 + 220908769 = 20285^2 + 14863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×632389994² = 799834209022640072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (632389997) 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 3 ways as a sum of consecutive naturals, for example, 374687 + ... + 376370.

Almost surely, 2^632389994 is an apocalyptic number.

632389994 is a deficient number, since it is larger than the sum of its proper divisors (318449434).

632389994 is a wasteful number, since it uses less digits than its factorization.

632389994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751480.

The product of its digits is 2519424, while the sum is 53.

The square root of 632389994 is about 25147.3655479058. The cubic root of 632389994 is about 858.3445683095.

The spelling of 632389994 in words is "six hundred thirty-two million, three hundred eighty-nine thousand, nine hundred ninety-four".