22079858 has 4 divisors (see below), whose sum is σ = 33119790. Its totient is φ = 11039928.

The previous prime is 22079857. The next prime is 22079887. The reversal of 22079858 is 85897022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20043529 + 2036329 = 4477^2 + 1427^2 .

It is not an unprimeable number, because it can be changed into a prime (22079851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5519963 + ... + 5519966.

Almost surely, 2^22079858 is an apocalyptic number.

22079858 is a deficient number, since it is larger than the sum of its proper divisors (11039932).

22079858 is a wasteful number, since it uses less digits than its factorization.

22079858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11039931.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 22079858 is about 4698.9209399606. The cubic root of 22079858 is about 280.5425619328.

The spelling of 22079858 in words is "twenty-two million, seventy-nine thousand, eight hundred fifty-eight".