30664231 has 12 divisors (see below), whose sum is σ = 33959352. Its totient is φ = 27524448.

The previous prime is 30664219. The next prime is 30664237. The reversal of 30664231 is 13246603.

It is not a de Polignac number, because 30664231 - 2⁹ = 30663719 is a prime.

It is a super-2 number, since 2×30664231² = 1880590125642722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30664196 and 30664205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30664237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16936 + ... + 18658.

It is an arithmetic number, because the mean of its divisors is an integer number (2829946).

Almost surely, 2^30664231 is an apocalyptic number.

30664231 is a deficient number, since it is larger than the sum of its proper divisors (3295121).

30664231 is a wasteful number, since it uses less digits than its factorization.

30664231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 30664231 is about 5537.5293227215. The cubic root of 30664231 is about 312.9997754390. Note that the first 3 decimals are identical.

The spelling of 30664231 in words is "thirty million, six hundred sixty-four thousand, two hundred thirty-one".