630448406 has 16 divisors (see below), whose sum is σ = 1102826400. Its totient is φ = 270191880.

The previous prime is 630448397. The next prime is 630448421. The reversal of 630448406 is 604844036.

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 7 ways as a sum of consecutive naturals, for example, 458825 + ... + 460196.

It is an arithmetic number, because the mean of its divisors is an integer number (68926650).

Almost surely, 2^630448406 is an apocalyptic number.

630448406 is a deficient number, since it is larger than the sum of its proper divisors (472377994).

630448406 is an equidigital number, since it uses as much as digits as its factorization.

630448406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919044 (or 919030 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 630448406 is about 25108.7316684854. The cubic root of 630448406 is about 857.4652269670.

The spelling of 630448406 in words is "six hundred thirty million, four hundred forty-eight thousand, four hundred six".