630394645 has 16 divisors (see below), whose sum is σ = 770400000. Its totient is φ = 495056448.

The previous prime is 630394627. The next prime is 630394651. The reversal of 630394645 is 546493036.

It is a cyclic number.

It is not a de Polignac number, because 630394645 - 2⁵ = 630394613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630394598 and 630394607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314356 + ... + 316354.

It is an arithmetic number, because the mean of its divisors is an integer number (48150000).

Almost surely, 2^630394645 is an apocalyptic number.

It is an amenable number.

630394645 is a deficient number, since it is larger than the sum of its proper divisors (140005355).

630394645 is a wasteful number, since it uses less digits than its factorization.

630394645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 630394645 is about 25107.6610818292. The cubic root of 630394645 is about 857.4408530462.

The spelling of 630394645 in words is "six hundred thirty million, three hundred ninety-four thousand, six hundred forty-five".