630042466 has 4 divisors (see below), whose sum is σ = 945063702. Its totient is φ = 315021232.

The previous prime is 630042443. The next prime is 630042467. The reversal of 630042466 is 664240036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 509811241 + 120231225 = 22579^2 + 10965^2 .

It is a super-2 number, since 2×630042466² = 793907017926722312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630042467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157510615 + ... + 157510618.

Almost surely, 2^630042466 is an apocalyptic number.

630042466 is a deficient number, since it is larger than the sum of its proper divisors (315021236).

630042466 is a wasteful number, since it uses less digits than its factorization.

630042466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315021235.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 630042466 is about 25100.6467247360. The cubic root of 630042466 is about 857.2811494300.

The spelling of 630042466 in words is "six hundred thirty million, forty-two thousand, four hundred sixty-six".