631662040 has 16 divisors (see below), whose sum is σ = 1421239680. Its totient is φ = 252664800.

The previous prime is 631662007. The next prime is 631662067. The reversal of 631662040 is 40266136.

631662040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7895736 + ... + 7895815.

It is an arithmetic number, because the mean of its divisors is an integer number (88827480).

Almost surely, 2^631662040 is an apocalyptic number.

It is an amenable number.

631662040 is an abundant number, since it is smaller than the sum of its proper divisors (789577640).

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

631662040 is a wasteful number, since it uses less digits than its factorization.

631662040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15791562 (or 15791558 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 631662040 is about 25132.8876176217. The cubic root of 631662040 is about 858.0150905748.

The spelling of 631662040 in words is "six hundred thirty-one million, six hundred sixty-two thousand, forty".