22029284 has 12 divisors (see below), whose sum is σ = 40580400. Its totient is φ = 10434888.

The previous prime is 22029257. The next prime is 22029289. The reversal of 22029284 is 48292022.

It is not an unprimeable number, because it can be changed into a prime (22029289) 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, 144854 + ... + 145005.

It is an arithmetic number, because the mean of its divisors is an integer number (3381700).

Almost surely, 2^22029284 is an apocalyptic number.

It is an amenable number.

22029284 is a deficient number, since it is larger than the sum of its proper divisors (18551116).

22029284 is a wasteful number, since it uses less digits than its factorization.

22029284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289882 (or 289880 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22029284 is about 4693.5364065915. The cubic root of 22029284 is about 280.3282035794.

The spelling of 22029284 in words is "twenty-two million, twenty-nine thousand, two hundred eighty-four".