23409750 has 160 divisors (see below), whose sum is σ = 73408608. Its totient is φ = 4939200.

The previous prime is 23409739. The next prime is 23409751. The reversal of 23409750 is 5790432.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23409751) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1800744 + ... + 1800756.

Almost surely, 2^23409750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23409750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36704304).

23409750 is an abundant number, since it is smaller than the sum of its proper divisors (49998858).

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

23409750 is an equidigital number, since it uses as much as digits as its factorization.

23409750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 23409750 is about 4838.3623262422. The cubic root of 23409750 is about 286.0655708947.

It can be divided in two parts, 2340 and 9750, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 23409750 in words is "twenty-three million, four hundred nine thousand, seven hundred fifty".