630469994 has 16 divisors (see below), whose sum is σ = 1179061056. Its totient is φ = 245637600.

The previous prime is 630469993. The next prime is 630470003. The reversal of 630469994 is 499964036.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (630469991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2046827 + ... + 2047134.

It is an arithmetic number, because the mean of its divisors is an integer number (73691316).

Almost surely, 2^630469994 is an apocalyptic number.

630469994 is a deficient number, since it is larger than the sum of its proper divisors (548591062).

630469994 is a wasteful number, since it uses less digits than its factorization.

630469994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093981.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 630469994 is about 25109.1615550978. The cubic root of 630469994 is about 857.4750140476.

The spelling of 630469994 in words is "six hundred thirty million, four hundred sixty-nine thousand, nine hundred ninety-four".