30664305 has 64 divisors (see below), whose sum is σ = 64058880. Its totient is φ = 13623552.

The previous prime is 30664303. The next prime is 30664321. The reversal of 30664305 is 50346603.

It is not a de Polignac number, because 30664305 - 2¹ = 30664303 is a prime.

It is a super-2 number, since 2×30664305² = 1880599202266050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (30664303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34527 + ... + 35403.

It is an arithmetic number, because the mean of its divisors is an integer number (1000920).

Almost surely, 2^30664305 is an apocalyptic number.

30664305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30664305 is an abundant number, since it is smaller than the sum of its proper divisors (33394575).

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

30664305 is a wasteful number, since it uses less digits than its factorization.

30664305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 30664305 is about 5537.5360043976. The cubic root of 30664305 is about 313.0000272195. Note that the first 4 decimals are identical.

The spelling of 30664305 in words is "thirty million, six hundred sixty-four thousand, three hundred five".