30949724 has 48 divisors (see below), whose sum is σ = 62431488. Its totient is φ = 13298688.

The previous prime is 30949717. The next prime is 30949747. The reversal of 30949724 is 42794903.

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, 138677 + ... + 138899.

It is an arithmetic number, because the mean of its divisors is an integer number (1300656).

Almost surely, 2^30949724 is an apocalyptic number.

30949724 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30949724 is an abundant number, since it is smaller than the sum of its proper divisors (31481764).

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

30949724 is a wasteful number, since it uses less digits than its factorization.

30949724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 30949724 is about 5563.2476126809. The cubic root of 30949724 is about 313.9681496356.

The spelling of 30949724 in words is "thirty million, nine hundred forty-nine thousand, seven hundred twenty-four".