22029290 has 8 divisors (see below), whose sum is σ = 39652740. Its totient is φ = 8811712.

The previous prime is 22029289. The next prime is 22029311. The reversal of 22029290 is 9292022.

It can be written as a sum of positive squares in 2 ways, for example, as 22024249 + 5041 = 4693^2 + 71^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101455 + ... + 1101474.

Almost surely, 2^22029290 is an apocalyptic number.

22029290 is a deficient number, since it is larger than the sum of its proper divisors (17623450).

22029290 is a wasteful number, since it uses less digits than its factorization.

22029290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202936.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 22029290 is about 4693.5370457684. The cubic root of 22029290 is about 280.3282290299.

The spelling of 22029290 in words is "twenty-two million, twenty-nine thousand, two hundred ninety".