22724194 has 4 divisors (see below), whose sum is σ = 34086294. Its totient is φ = 11362096.

The previous prime is 22724183. The next prime is 22724231. The reversal of 22724194 is 49142722.

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., 22686169 + 38025 = 4763^2 + 195^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5681047 + ... + 5681050.

Almost surely, 2^22724194 is an apocalyptic number.

22724194 is a deficient number, since it is larger than the sum of its proper divisors (11362100).

22724194 is a wasteful number, since it uses less digits than its factorization.

22724194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362099.

The product of its digits is 8064, while the sum is 31.

The square root of 22724194 is about 4766.9900356514. The cubic root of 22724194 is about 283.2453764656.

The spelling of 22724194 in words is "twenty-two million, seven hundred twenty-four thousand, one hundred ninety-four".