630949450 has 12 divisors (see below), whose sum is σ = 1173566070. Its totient is φ = 252379760.

The previous prime is 630949447. The next prime is 630949463. The reversal of 630949450 is 54949036.

It can be written as a sum of positive squares in 3 ways, for example, as 593458321 + 37491129 = 24361^2 + 6123^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6309445 + ... + 6309544.

Almost surely, 2^630949450 is an apocalyptic number.

630949450 is a deficient number, since it is larger than the sum of its proper divisors (542616620).

630949450 is a wasteful number, since it uses less digits than its factorization.

630949450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12619001 (or 12618996 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 630949450 is about 25118.7071721456. The cubic root of 630949450 is about 857.6923214386.

The spelling of 630949450 in words is "six hundred thirty million, nine hundred forty-nine thousand, four hundred fifty".