646550030 has 32 divisors (see below), whose sum is σ = 1334287296. Its totient is φ = 220967424.

The previous prime is 646550027. The next prime is 646550057. The reversal of 646550030 is 30055646.

It is a junction number, because it is equal to n+sod(n) for n = 646549975 and 646550002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7622 + ... + 36758.

It is an arithmetic number, because the mean of its divisors is an integer number (41696478).

Almost surely, 2^646550030 is an apocalyptic number.

646550030 is an abundant number, since it is smaller than the sum of its proper divisors (687737266).

646550030 is a wasteful number, since it uses less digits than its factorization.

646550030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29468.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 646550030 is about 25427.3480724986. The cubic root of 646550030 is about 864.7038223304.

The spelling of 646550030 in words is "six hundred forty-six million, five hundred fifty thousand, thirty".