30944312 has 64 divisors (see below), whose sum is σ = 70656000. Its totient is φ = 12410496.

The previous prime is 30944297. The next prime is 30944359. The reversal of 30944312 is 21344903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135014 + ... + 135242.

It is an arithmetic number, because the mean of its divisors is an integer number (1104000).

Almost surely, 2^30944312 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 30944312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35328000).

30944312 is an abundant number, since it is smaller than the sum of its proper divisors (39711688).

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

30944312 is a wasteful number, since it uses less digits than its factorization.

30944312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30944312 is about 5562.7611848793. The cubic root of 30944312 is about 313.9498479681.

The spelling of 30944312 in words is "thirty million, nine hundred forty-four thousand, three hundred twelve".