22257330 has 32 divisors (see below), whose sum is σ = 55741824. Its totient is φ = 5677056.

The previous prime is 22257317. The next prime is 22257343. The reversal of 22257330 is 3375222.

It is an interprime number because it is at equal distance from previous prime (22257317) and next prime (22257343).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22257330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15439 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (1741932).

Almost surely, 2^22257330 is an apocalyptic number.

22257330 is an abundant number, since it is smaller than the sum of its proper divisors (33484494).

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

22257330 is a wasteful number, since it uses less digits than its factorization.

22257330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32290.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 22257330 is about 4717.7674804933. The cubic root of 22257330 is about 281.2921991002.

The spelling of 22257330 in words is "twenty-two million, two hundred fifty-seven thousand, three hundred thirty".