22755438 has 16 divisors (see below), whose sum is σ = 50567760. Its totient is φ = 7585128.

The previous prime is 22755437. The next prime is 22755443. The reversal of 22755438 is 83455722.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22755437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210645 + ... + 210752.

It is an arithmetic number, because the mean of its divisors is an integer number (3160485).

Almost surely, 2^22755438 is an apocalyptic number.

22755438 is an abundant number, since it is smaller than the sum of its proper divisors (27812322).

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

22755438 is a wasteful number, since it uses less digits than its factorization.

22755438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421408 (or 421402 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 22755438 is about 4770.2660303174. The cubic root of 22755438 is about 283.3751304736.

The spelling of 22755438 in words is "twenty-two million, seven hundred fifty-five thousand, four hundred thirty-eight".