30964381 has 12 divisors (see below), whose sum is σ = 36574176. Its totient is φ = 25679160.

The previous prime is 30964369. The next prime is 30964391. The reversal of 30964381 is 18346903.

It is not a de Polignac number, because 30964381 - 2⁷ = 30964253 is a prime.

It is a super-2 number, since 2×30964381² = 1917585781426322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30964331) 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, 4426 + ... + 9028.

It is an arithmetic number, because the mean of its divisors is an integer number (3047848).

Almost surely, 2^30964381 is an apocalyptic number.

30964381 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30964381 is a deficient number, since it is larger than the sum of its proper divisors (5609795).

30964381 is an equidigital number, since it uses as much as digits as its factorization.

30964381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672 (or 4641 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 30964381 is about 5564.5647628543. The cubic root of 30964381 is about 314.0177042501.

The spelling of 30964381 in words is "thirty million, nine hundred sixty-four thousand, three hundred eighty-one".