30945336 has 32 divisors (see below), whose sum is σ = 77884800. Its totient is φ = 10245600.

The previous prime is 30945331. The next prime is 30945353. The reversal of 30945336 is 63354903.

It is a super-2 number, since 2×30945336² = 1915227640305792, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 30945297 and 30945306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30945331) 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, 646 + ... + 7893.

It is an arithmetic number, because the mean of its divisors is an integer number (2433900).

Almost surely, 2^30945336 is an apocalyptic number.

It is an amenable number.

30945336 is an abundant number, since it is smaller than the sum of its proper divisors (46939464).

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

30945336 is a wasteful number, since it uses less digits than its factorization.

30945336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699 (or 8695 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 30945336 is about 5562.8532247400. The cubic root of 30945336 is about 313.9533109750.

The spelling of 30945336 in words is "thirty million, nine hundred forty-five thousand, three hundred thirty-six".