632488994 has 4 divisors (see below), whose sum is σ = 948733494. Its totient is φ = 316244496.

The previous prime is 632488991. The next prime is 632489003. The reversal of 632488994 is 499884236.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 525097225 + 107391769 = 22915^2 + 10363^2 .

It is a super-2 number, since 2×632488994² = 800084655062264072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (632488991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158122247 + ... + 158122250.

Almost surely, 2^632488994 is an apocalyptic number.

632488994 is a deficient number, since it is larger than the sum of its proper divisors (316244500).

632488994 is a wasteful number, since it uses less digits than its factorization.

632488994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316244499.

The product of its digits is 2985984, while the sum is 53.

The square root of 632488994 is about 25149.3338679179. Note that the first 3 decimals coincide. The cubic root of 632488994 is about 858.3893569574.

The spelling of 632488994 in words is "six hundred thirty-two million, four hundred eighty-eight thousand, nine hundred ninety-four".