23342240 has 48 divisors (see below), whose sum is σ = 57552768. Its totient is φ = 8929536.

The previous prime is 23342213. The next prime is 23342251. The reversal of 23342240 is 4224332.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509 + ... + 6851.

It is an arithmetic number, because the mean of its divisors is an integer number (1199016).

Almost surely, 2^23342240 is an apocalyptic number.

23342240 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 23342240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28776384).

23342240 is an abundant number, since it is smaller than the sum of its proper divisors (34210528).

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

23342240 is a wasteful number, since it uses less digits than its factorization.

23342240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381 (or 6373 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 23342240 is about 4831.3807550223. The cubic root of 23342240 is about 285.7903169085.

Adding to 23342240 its reverse (4224332), we get a palindrome (27566572).

The spelling of 23342240 in words is "twenty-three million, three hundred forty-two thousand, two hundred forty".