490631630 has 48 divisors (see below), whose sum is σ = 930499920. Its totient is φ = 186240384.

The previous prime is 490631629. The next prime is 490631663. The reversal of 490631630 is 36136094.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 861986 + ... + 862554.

It is an arithmetic number, because the mean of its divisors is an integer number (19385415).

Almost surely, 2^490631630 is an apocalyptic number.

490631630 is a deficient number, since it is larger than the sum of its proper divisors (439868290).

490631630 is a wasteful number, since it uses less digits than its factorization.

490631630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 490631630 is about 22150.2060938493. The cubic root of 490631630 is about 788.7121194081.

The spelling of 490631630 in words is "four hundred ninety million, six hundred thirty-one thousand, six hundred thirty".