22453750 has 80 divisors (see below), whose sum is σ = 48584448. Its totient is φ = 7700000.

The previous prime is 22453747. The next prime is 22453751. The reversal of 22453750 is 5735422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22453751) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 316215 + ... + 316285.

Almost surely, 2^22453750 is an apocalyptic number.

22453750 is an abundant number, since it is smaller than the sum of its proper divisors (26130698).

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

22453750 is a wasteful number, since it uses less digits than its factorization.

22453750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 22453750 is about 4738.5388043151. The cubic root of 22453750 is about 282.1172407901.

It can be divided in two parts, 2245 and 3750, that added together give a palindrome (5995).

The spelling of 22453750 in words is "twenty-two million, four hundred fifty-three thousand, seven hundred fifty".