22750722 has 12 divisors (see below), whose sum is σ = 49293270. Its totient is φ = 7583568.

The previous prime is 22750699. The next prime is 22750723. The reversal of 22750722 is 22705722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19368801 + 3381921 = 4401^2 + 1839^2 .

It is not an unprimeable number, because it can be changed into a prime (22750723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 631947 + ... + 631982.

Almost surely, 2^22750722 is an apocalyptic number.

22750722 is an abundant number, since it is smaller than the sum of its proper divisors (26542548).

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

22750722 is a wasteful number, since it uses less digits than its factorization.

22750722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263937 (or 1263934 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 22750722 is about 4769.7716926495. The cubic root of 22750722 is about 283.3555528903.

It can be divided in two parts, 227507 and 22, that added together give a square (227529 = 477²).

The spelling of 22750722 in words is "twenty-two million, seven hundred fifty thousand, seven hundred twenty-two".