22157282 has 16 divisors (see below), whose sum is σ = 38076480. Its totient is φ = 9472848.

The previous prime is 22157269. The next prime is 22157293. The reversal of 22157282 is 28275122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4844 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (2379780).

Almost surely, 2^22157282 is an apocalyptic number.

22157282 is a deficient number, since it is larger than the sum of its proper divisors (15919198).

22157282 is a wasteful number, since it uses less digits than its factorization.

22157282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865.

The product of its digits is 4480, while the sum is 29.

The square root of 22157282 is about 4707.1522176365. The cubic root of 22157282 is about 280.8700910384.

The spelling of 22157282 in words is "twenty-two million, one hundred fifty-seven thousand, two hundred eighty-two".