22750224 has 40 divisors (see below), whose sum is σ = 67168320. Its totient is φ = 6499968.

The previous prime is 22750213. The next prime is 22750241. The reversal of 22750224 is 42205722.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 22750194 and 22750203.

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, 33519 + ... + 34190.

It is an arithmetic number, because the mean of its divisors is an integer number (1679208).

Almost surely, 2^22750224 is an apocalyptic number.

22750224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22750224 is an abundant number, since it is smaller than the sum of its proper divisors (44418096).

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

22750224 is a wasteful number, since it uses less digits than its factorization.

22750224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67727 (or 67721 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 22750224 is about 4769.7194886073. The cubic root of 22750224 is about 283.3534853794.

Adding to 22750224 its reverse (42205722), we get a palindrome (64955946).

The spelling of 22750224 in words is "twenty-two million, seven hundred fifty thousand, two hundred twenty-four".