30646130 has 16 divisors (see below), whose sum is σ = 55920024. Its totient is φ = 12090240.

The previous prime is 30646129. The next prime is 30646157. The reversal of 30646130 is 3164603.

It can be written as a sum of positive squares in 4 ways, for example, as 16410601 + 14235529 = 4051^2 + 3773^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30646096 and 30646105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20261 + ... + 21720.

Almost surely, 2^30646130 is an apocalyptic number.

30646130 is a deficient number, since it is larger than the sum of its proper divisors (25273894).

30646130 is a wasteful number, since it uses less digits than its factorization.

30646130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42061.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 30646130 is about 5535.8946883047. The cubic root of 30646130 is about 312.9381757194.

The spelling of 30646130 in words is "thirty million, six hundred forty-six thousand, one hundred thirty".