22875240 has 128 divisors (see below), whose sum is σ = 73728000. Its totient is φ = 5660928.

The previous prime is 22875239. The next prime is 22875247. The reversal of 22875240 is 4257822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22875198 and 22875207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22875247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180057 + ... + 180183.

It is an arithmetic number, because the mean of its divisors is an integer number (576000).

Almost surely, 2^22875240 is an apocalyptic number.

22875240 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 22875240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36864000).

22875240 is an abundant number, since it is smaller than the sum of its proper divisors (50852760).

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

22875240 is a wasteful number, since it uses less digits than its factorization.

22875240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 22875240 is about 4782.8067073634. The cubic root of 22875240 is about 283.8715613102.

The spelling of 22875240 in words is "twenty-two million, eight hundred seventy-five thousand, two hundred forty".