631345748 has 24 divisors (see below), whose sum is σ = 1217238624. Its totient is φ = 284132000.

The previous prime is 631345739. The next prime is 631345777. The reversal of 631345748 is 847543136.

It is a congruent number.

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, 66590 + ... + 75477.

It is an arithmetic number, because the mean of its divisors is an integer number (50718276).

Almost surely, 2^631345748 is an apocalyptic number.

It is an amenable number.

631345748 is a deficient number, since it is larger than the sum of its proper divisors (585892876).

631345748 is a wasteful number, since it uses less digits than its factorization.

631345748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142183 (or 142181 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 631345748 is about 25126.5944369706. The cubic root of 631345748 is about 857.8718554264.

The spelling of 631345748 in words is "six hundred thirty-one million, three hundred forty-five thousand, seven hundred forty-eight".