30961344 has 84 divisors (see below), whose sum is σ = 84845144. Its totient is φ = 9962496.

The previous prime is 30961339. The next prime is 30961349. The reversal of 30961344 is 44316903.

It is an interprime number because it is at equal distance from previous prime (30961339) and next prime (30961349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30961349) 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, 424092 + ... + 424164.

Almost surely, 2^30961344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30961344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42422572).

30961344 is an abundant number, since it is smaller than the sum of its proper divisors (53883800).

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

30961344 is an equidigital number, since it uses as much as digits as its factorization.

30961344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 30961344 is about 5564.2918686927. The cubic root of 30961344 is about 314.0074375833.

The spelling of 30961344 in words is "thirty million, nine hundred sixty-one thousand, three hundred forty-four".