631574442 has 16 divisors (see below), whose sum is σ = 1403498880. Its totient is φ = 210524796.

The previous prime is 631574431. The next prime is 631574453. The reversal of 631574442 is 244475136.

631574442 is a `hidden beast` number, since 63 + 157 + 4 + 442 = 666.

631574442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (631574431) and next prime (631574453).

It is a super-2 number, since 2×631574442² = 797772551575222728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 631574397 and 631574406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5847858 + ... + 5847965.

It is an arithmetic number, because the mean of its divisors is an integer number (87718680).

Almost surely, 2^631574442 is an apocalyptic number.

631574442 is an abundant number, since it is smaller than the sum of its proper divisors (771924438).

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

631574442 is a wasteful number, since it uses less digits than its factorization.

631574442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11695834 (or 11695828 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 631574442 is about 25131.1448605112. The cubic root of 631574442 is about 857.9754259674.

The spelling of 631574442 in words is "six hundred thirty-one million, five hundred seventy-four thousand, four hundred forty-two".