23250000 has 140 divisors (see below), whose sum is σ = 77499008. Its totient is φ = 6000000.

The previous prime is 23249983. The next prime is 23250001. The reversal of 23250000 is 5232.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23250001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 749985 + ... + 750015.

Almost surely, 2^23250000 is an apocalyptic number.

23250000 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 23250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38749504).

23250000 is an abundant number, since it is smaller than the sum of its proper divisors (54249008).

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

23250000 is an frugal number, since it uses more digits than its factorization.

23250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 23250000 is about 4821.8253804965. The cubic root of 23250000 is about 285.4133736692.

Adding to 23250000 its reverse (5232), we get a palindrome (23255232).

The spelling of 23250000 in words is "twenty-three million, two hundred fifty thousand".