23169240 has 80 divisors (see below), whose sum is σ = 77885280. Its totient is φ = 6177600.

The previous prime is 23169233. The next prime is 23169247. The reversal of 23169240 is 4296132.

It is an interprime number because it is at equal distance from previous prime (23169233) and next prime (23169247).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23169247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 336 + ... + 6815.

It is an arithmetic number, because the mean of its divisors is an integer number (973566).

Almost surely, 2^23169240 is an apocalyptic number.

23169240 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 23169240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38942640).

23169240 is an abundant number, since it is smaller than the sum of its proper divisors (54716040).

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

23169240 is a wasteful number, since it uses less digits than its factorization.

23169240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7174 (or 7161 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 23169240 is about 4813.4436737122. The cubic root of 23169240 is about 285.0825245783.

It can be divided in two parts, 23169 and 240, that added together give a square (23409 = 153²).

The spelling of 23169240 in words is "twenty-three million, one hundred sixty-nine thousand, two hundred forty".