30642976 has 96 divisors (see below), whose sum is σ = 78744960. Its totient is φ = 11390976.

The previous prime is 30642929. The next prime is 30643021. The reversal of 30642976 is 67924603.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 49195 + ... + 49813.

It is an arithmetic number, because the mean of its divisors is an integer number (820260).

Almost surely, 2^30642976 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 30642976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39372480).

30642976 is an abundant number, since it is smaller than the sum of its proper divisors (48101984).

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

30642976 is a wasteful number, since it uses less digits than its factorization.

30642976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 30642976 is about 5535.6098128391. The cubic root of 30642976 is about 312.9274398247.

The spelling of 30642976 in words is "thirty million, six hundred forty-two thousand, nine hundred seventy-six".