22457088 has 162 divisors, whose sum is σ = 70867524. Its totient is φ = 7091712.

The previous prime is 22457081. The next prime is 22457129. The reversal of 22457088 is 88075422.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22457088 is a `hidden beast` number, since 2 + 2 + 4 + 570 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (162).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (22457081) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1181943 + ... + 1181961.

Almost surely, 2^22457088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22457088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35433762).

22457088 is an abundant number, since it is smaller than the sum of its proper divisors (48410436).

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

22457088 is an frugal number, since it uses more digits than its factorization.

22457088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 22457088 is about 4738.8910095084. The cubic root of 22457088 is about 282.1312200540.

The spelling of 22457088 in words is "twenty-two million, four hundred fifty-seven thousand, eighty-eight".