30949428 has 12 divisors (see below), whose sum is σ = 72215360. Its totient is φ = 10316472.

The previous prime is 30949417. The next prime is 30949441. The reversal of 30949428 is 82494903.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289548 + ... + 1289571.

Almost surely, 2^30949428 is an apocalyptic number.

It is an amenable number.

30949428 is an abundant number, since it is smaller than the sum of its proper divisors (41265932).

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

30949428 is a wasteful number, since it uses less digits than its factorization.

30949428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579126 (or 2579124 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 30949428 is about 5563.2210094513. The cubic root of 30949428 is about 313.9671487127.

The spelling of 30949428 in words is "thirty million, nine hundred forty-nine thousand, four hundred twenty-eight".