631528382 has 4 divisors (see below), whose sum is σ = 947292576. Its totient is φ = 315764190.

The previous prime is 631528361. The next prime is 631528397. The reversal of 631528382 is 283825136.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157882094 + ... + 157882097.

It is an arithmetic number, because the mean of its divisors is an integer number (236823144).

Almost surely, 2^631528382 is an apocalyptic number.

631528382 is a deficient number, since it is larger than the sum of its proper divisors (315764194).

631528382 is a wasteful number, since it uses less digits than its factorization.

631528382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315764193.

The product of its digits is 69120, while the sum is 38.

The square root of 631528382 is about 25130.2284510109. The cubic root of 631528382 is about 857.9545684056.

The spelling of 631528382 in words is "six hundred thirty-one million, five hundred twenty-eight thousand, three hundred eighty-two".