23301240 has 64 divisors (see below), whose sum is σ = 70256160. Its totient is φ = 6182400.

The previous prime is 23301233. The next prime is 23301247. The reversal of 23301240 is 4210332.

It is an interprime number because it is at equal distance from previous prime (23301233) and next prime (23301247).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23301247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32890 + ... + 33590.

Almost surely, 2^23301240 is an apocalyptic number.

23301240 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 23301240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35128080).

23301240 is an abundant number, since it is smaller than the sum of its proper divisors (46954920).

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

23301240 is a wasteful number, since it uses less digits than its factorization.

23301240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23301240 is about 4827.1357967225. The cubic root of 23301240 is about 285.6228912440.

Adding to 23301240 its reverse (4210332), we get a palindrome (27511572).

It can be divided in two parts, 2330 and 1240, that added together give a triangular number (3570 = T₈₄).

The spelling of 23301240 in words is "twenty-three million, three hundred one thousand, two hundred forty".