630044006 has 4 divisors (see below), whose sum is σ = 945066012. Its totient is φ = 315022002.

The previous prime is 630043951. The next prime is 630044017. The reversal of 630044006 is 600440036.

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

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, 157511000 + ... + 157511003.

It is an arithmetic number, because the mean of its divisors is an integer number (236266503).

Almost surely, 2^630044006 is an apocalyptic number.

630044006 is a deficient number, since it is larger than the sum of its proper divisors (315022006).

630044006 is a wasteful number, since it uses less digits than its factorization.

630044006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315022005.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 630044006 is about 25100.6774012177. The cubic root of 630044006 is about 857.2818479077.

The spelling of 630044006 in words is "six hundred thirty million, forty-four thousand, six".