30664330 has 16 divisors (see below), whose sum is σ = 55350504. Its totient is φ = 12231360.

The previous prime is 30664321. The next prime is 30664331. The reversal of 30664330 is 3346603.

It can be written as a sum of positive squares in 4 ways, for example, as 29778849 + 885481 = 5457^2 + 941^2 .

It is a super-2 number, since 2×30664330² = 1880602268697800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30664295 and 30664304.

It is not an unprimeable number, because it can be changed into a prime (30664331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 7840.

Almost surely, 2^30664330 is an apocalyptic number.

30664330 is a deficient number, since it is larger than the sum of its proper divisors (24686174).

30664330 is a wasteful number, since it uses less digits than its factorization.

30664330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 30664330 is about 5537.5382617188. The cubic root of 30664330 is about 313.0001122804. Note that the first 3 decimals are identical.

It can be divided in two parts, 3066 and 4330, that added together give a square (7396 = 86²).

The spelling of 30664330 in words is "thirty million, six hundred sixty-four thousand, three hundred thirty".