23072280 has 192 divisors, whose sum is σ = 87333120. Its totient is φ = 4773120.

The previous prime is 23072279. The next prime is 23072293. The reversal of 23072280 is 8227032.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23072280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101527 + ... + 101753.

It is an arithmetic number, because the mean of its divisors is an integer number (454860).

Almost surely, 2^23072280 is an apocalyptic number.

23072280 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 23072280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43666560).

23072280 is an abundant number, since it is smaller than the sum of its proper divisors (64260840).

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

23072280 is a wasteful number, since it uses less digits than its factorization.

23072280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 23072280 is about 4803.3613230737. The cubic root of 23072280 is about 284.6842918322.

The spelling of 23072280 in words is "twenty-three million, seventy-two thousand, two hundred eighty".