631341328 has 10 divisors (see below), whose sum is σ = 1223223854. Its totient is φ = 315670656.

The previous prime is 631341313. The next prime is 631341343. The reversal of 631341328 is 823143136.

It is an interprime number because it is at equal distance from previous prime (631341313) and next prime (631341343).

It can be written as a sum of positive squares in only one way, i.e., 474891264 + 156450064 = 21792^2 + 12508^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 631341328.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19729401 + ... + 19729432.

Almost surely, 2^631341328 is an apocalyptic number.

It is an amenable number.

631341328 is a deficient number, since it is larger than the sum of its proper divisors (591882526).

631341328 is a wasteful number, since it uses less digits than its factorization.

631341328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39458841 (or 39458835 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 631341328 is about 25126.5064821992. The cubic root of 631341328 is about 857.8698534581.

The spelling of 631341328 in words is "six hundred thirty-one million, three hundred forty-one thousand, three hundred twenty-eight".