30457968 has 20 divisors (see below), whose sum is σ = 78683208. Its totient is φ = 10152640.

The previous prime is 30457963. The next prime is 30457981. The reversal of 30457968 is 86975403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30457963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317223 + ... + 317318.

Almost surely, 2^30457968 is an apocalyptic number.

It is an amenable number.

30457968 is an abundant number, since it is smaller than the sum of its proper divisors (48225240).

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

30457968 is a wasteful number, since it uses less digits than its factorization.

30457968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634552 (or 634546 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 30457968 is about 5518.8737981585. The cubic root of 30457968 is about 312.2963981503.

The spelling of 30457968 in words is "thirty million, four hundred fifty-seven thousand, nine hundred sixty-eight".