630434205 has 128 divisors (see below), whose sum is σ = 1242915840. Its totient is φ = 301916160.

The previous prime is 630434201. The next prime is 630434213. The reversal of 630434205 is 502434036.

630434205 is a `hidden beast` number, since 630 + 4 + 3 + 4 + 20 + 5 = 666.

It is not a de Polignac number, because 630434205 - 2² = 630434201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630434201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8636049 + ... + 8636121.

It is an arithmetic number, because the mean of its divisors is an integer number (9710280).

Almost surely, 2^630434205 is an apocalyptic number.

It is an amenable number.

630434205 is a deficient number, since it is larger than the sum of its proper divisors (612481635).

630434205 is a wasteful number, since it uses less digits than its factorization.

630434205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 630434205 is about 25108.4488768223. The cubic root of 630434205 is about 857.4587887160.

The spelling of 630434205 in words is "six hundred thirty million, four hundred thirty-four thousand, two hundred five".