23250720 has 96 divisors (see below), whose sum is σ = 74571840. Its totient is φ = 6087680.

The previous prime is 23250709. The next prime is 23250739. The reversal of 23250720 is 2705232.

It is a tau number, because it is divible by the number of its divisors (96).

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, 27910 + ... + 28730.

It is an arithmetic number, because the mean of its divisors is an integer number (776790).

Almost surely, 2^23250720 is an apocalyptic number.

23250720 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 23250720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37285920).

23250720 is an abundant number, since it is smaller than the sum of its proper divisors (51321120).

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

23250720 is a wasteful number, since it uses less digits than its factorization.

23250720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 23250720 is about 4821.9000404405. The cubic root of 23250720 is about 285.4163198414.

Adding to 23250720 its reverse (2705232), we get a palindrome (25955952).

The spelling of 23250720 in words is "twenty-three million, two hundred fifty thousand, seven hundred twenty".