22064290 has 8 divisors (see below), whose sum is σ = 39715740. Its totient is φ = 8825712.

The previous prime is 22064269. The next prime is 22064293. The reversal of 22064290 is 9246022.

It can be written as a sum of positive squares in 2 ways, for example, as 21353641 + 710649 = 4621^2 + 843^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22064293) 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, 1103205 + ... + 1103224.

Almost surely, 2^22064290 is an apocalyptic number.

22064290 is a deficient number, since it is larger than the sum of its proper divisors (17651450).

22064290 is a wasteful number, since it uses less digits than its factorization.

22064290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206436.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22064290 is about 4697.2640973230. The cubic root of 22064290 is about 280.4766117279.

The spelling of 22064290 in words is "twenty-two million, sixty-four thousand, two hundred ninety".