630195604 has 6 divisors (see below), whose sum is σ = 1102842314. Its totient is φ = 315097800.

The previous prime is 630195589. The next prime is 630195617. The reversal of 630195604 is 406591036.

It can be written as a sum of positive squares in only one way, i.e., 621504900 + 8690704 = 24930^2 + 2948^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 630195604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78774447 + ... + 78774454.

Almost surely, 2^630195604 is an apocalyptic number.

It is an amenable number.

630195604 is a deficient number, since it is larger than the sum of its proper divisors (472646710).

630195604 is a wasteful number, since it uses less digits than its factorization.

630195604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157548905 (or 157548903 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 630195604 is about 25103.6970185668. The cubic root of 630195604 is about 857.3506006668.

The spelling of 630195604 in words is "six hundred thirty million, one hundred ninety-five thousand, six hundred four".