631040248 has 8 divisors (see below), whose sum is σ = 1183200480. Its totient is φ = 315520120.

The previous prime is 631040243. The next prime is 631040257. The reversal of 631040248 is 842040136.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631040243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39440008 + ... + 39440023.

It is an arithmetic number, because the mean of its divisors is an integer number (147900060).

Almost surely, 2^631040248 is an apocalyptic number.

It is an amenable number.

631040248 is a deficient number, since it is larger than the sum of its proper divisors (552160232).

631040248 is a wasteful number, since it uses less digits than its factorization.

631040248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78880037 (or 78880033 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 631040248 is about 25120.5144851772. The cubic root of 631040248 is about 857.7334620889.

The spelling of 631040248 in words is "six hundred thirty-one million, forty thousand, two hundred forty-eight".