630142866 has 24 divisors (see below), whose sum is σ = 1437168720. Its totient is φ = 198992376.

The previous prime is 630142861. The next prime is 630142867. The reversal of 630142866 is 668241036.

630142866 is a `hidden beast` number, since 630 + 14 + 2 + 8 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 630142866.

It is not an unprimeable number, because it can be changed into a prime (630142861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 920920 + ... + 921603.

It is an arithmetic number, because the mean of its divisors is an integer number (59882030).

Almost surely, 2^630142866 is an apocalyptic number.

630142866 is an abundant number, since it is smaller than the sum of its proper divisors (807025854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630142866 is a wasteful number, since it uses less digits than its factorization.

630142866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842550 (or 1842547 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 630142866 is about 25102.6465935367. The cubic root of 630142866 is about 857.3266841680.

The spelling of 630142866 in words is "six hundred thirty million, one hundred forty-two thousand, eight hundred sixty-six".