23022340 has 48 divisors (see below), whose sum is σ = 53089344. Its totient is φ = 8316800.

The previous prime is 23022313. The next prime is 23022341. The reversal of 23022340 is 4322032.

It is not an unprimeable number, because it can be changed into a prime (23022341) 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, 49710 + ... + 50170.

It is an arithmetic number, because the mean of its divisors is an integer number (1106028).

Almost surely, 2^23022340 is an apocalyptic number.

23022340 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 23022340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26544672).

23022340 is an abundant number, since it is smaller than the sum of its proper divisors (30067004).

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

23022340 is a wasteful number, since it uses less digits than its factorization.

23022340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 23022340 is about 4798.1600640245. The cubic root of 23022340 is about 284.4787435356.

Adding to 23022340 its reverse (4322032), we get a palindrome (27344372).

The spelling of 23022340 in words is "twenty-three million, twenty-two thousand, three hundred forty".