22051488 has 24 divisors (see below), whose sum is σ = 57885408. Its totient is φ = 7350464.

The previous prime is 22051487. The next prime is 22051489. The reversal of 22051488 is 88415022.

It is an interprime number because it is at equal distance from previous prime (22051487) and next prime (22051489).

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (22051483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114756 + ... + 114947.

It is an arithmetic number, because the mean of its divisors is an integer number (2411892).

Almost surely, 2^22051488 is an apocalyptic number.

It is an amenable number.

22051488 is an abundant number, since it is smaller than the sum of its proper divisors (35833920).

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

22051488 is a wasteful number, since it uses less digits than its factorization.

22051488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229716 (or 229708 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 22051488 is about 4695.9011914647. The cubic root of 22051488 is about 280.4223557898.

The spelling of 22051488 in words is "twenty-two million, fifty-one thousand, four hundred eighty-eight".