22753240 has 16 divisors (see below), whose sum is σ = 51194880. Its totient is φ = 9101280.

The previous prime is 22753223. The next prime is 22753243. The reversal of 22753240 is 4235722.

22753240 = 1185² + 1186² + ... + 1200².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22753243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284376 + ... + 284455.

It is an arithmetic number, because the mean of its divisors is an integer number (3199680).

Almost surely, 2^22753240 is an apocalyptic number.

22753240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22753240 is an abundant number, since it is smaller than the sum of its proper divisors (28441640).

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

22753240 is a wasteful number, since it uses less digits than its factorization.

22753240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568842 (or 568838 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22753240 is about 4770.0356392799. The cubic root of 22753240 is about 283.3660062283.

Adding to 22753240 its reverse (4235722), we get a palindrome (26988962).

The spelling of 22753240 in words is "twenty-two million, seven hundred fifty-three thousand, two hundred forty".