23030280 has 384 divisors, whose sum is σ = 99590400. Its totient is φ = 4478976.

The previous prime is 23030251. The next prime is 23030281. The reversal of 23030280 is 8203032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (23030281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 622422 + ... + 622458.

It is an arithmetic number, because the mean of its divisors is an integer number (259350).

Almost surely, 2^23030280 is an apocalyptic number.

23030280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23030280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49795200).

23030280 is an abundant number, since it is smaller than the sum of its proper divisors (76560120).

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

23030280 is a wasteful number, since it uses less digits than its factorization.

23030280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23030280 is about 4798.9873931904. The cubic root of 23030280 is about 284.5114436811.

The spelling of 23030280 in words is "twenty-three million, thirty thousand, two hundred eighty".