22421274 has 16 divisors (see below), whose sum is σ = 46792512. Its totient is φ = 7148768.

The previous prime is 22421233. The next prime is 22421281. The reversal of 22421274 is 47212422.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81099 + ... + 81374.

It is an arithmetic number, because the mean of its divisors is an integer number (2924532).

Almost surely, 2^22421274 is an apocalyptic number.

22421274 is an abundant number, since it is smaller than the sum of its proper divisors (24371238).

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

22421274 is a wasteful number, since it uses less digits than its factorization.

22421274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162501.

The product of its digits is 1792, while the sum is 24.

The square root of 22421274 is about 4735.1107695597. The cubic root of 22421274 is about 281.9811616609.

Adding to 22421274 its reverse (47212422), we get a palindrome (69633696).

The spelling of 22421274 in words is "twenty-two million, four hundred twenty-one thousand, two hundred seventy-four".