30023664 has 80 divisors (see below), whose sum is σ = 85601664. Its totient is φ = 8992000.

The previous prime is 30023663. The next prime is 30023711. The reversal of 30023664 is 46632003.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53047 + ... + 53609.

Almost surely, 2^30023664 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 30023664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42800832).

30023664 is an abundant number, since it is smaller than the sum of its proper divisors (55578000).

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

30023664 is a wasteful number, since it uses less digits than its factorization.

30023664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 30023664 is about 5479.3853669914. The cubic root of 30023664 is about 310.8049286233.

Adding to 30023664 its reverse (46632003), we get a palindrome (76655667).

It can be divided in two parts, 3002 and 3664, that added together give a palindrome (6666).

The spelling of 30023664 in words is "thirty million, twenty-three thousand, six hundred sixty-four".