22282146 has 12 divisors (see below), whose sum is σ = 48278022. Its totient is φ = 7427376.

The previous prime is 22282109. The next prime is 22282159. The reversal of 22282146 is 64128222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 239121 = 4695^2 + 489^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618931 + ... + 618966.

Almost surely, 2^22282146 is an apocalyptic number.

22282146 is an abundant number, since it is smaller than the sum of its proper divisors (25995876).

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

22282146 is a wasteful number, since it uses less digits than its factorization.

22282146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237905 (or 1237902 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 22282146 is about 4720.3968053544. The cubic root of 22282146 is about 281.3967033164.

The spelling of 22282146 in words is "twenty-two million, two hundred eighty-two thousand, one hundred forty-six".