30623768 has 64 divisors (see below), whose sum is σ = 68904000. Its totient is φ = 12483072.

The previous prime is 30623731. The next prime is 30623779. The reversal of 30623768 is 86732603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176930 + ... + 177102.

It is an arithmetic number, because the mean of its divisors is an integer number (1076625).

Almost surely, 2^30623768 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 30623768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34452000).

30623768 is an abundant number, since it is smaller than the sum of its proper divisors (38280232).

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

30623768 is a wasteful number, since it uses less digits than its factorization.

30623768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 30623768 is about 5533.8745920015. The cubic root of 30623768 is about 312.8620418403.

The spelling of 30623768 in words is "thirty million, six hundred twenty-three thousand, seven hundred sixty-eight".