22072894 has 4 divisors (see below), whose sum is σ = 33109344. Its totient is φ = 11036446.

The previous prime is 22072877. The next prime is 22072901. The reversal of 22072894 is 49827022.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5518222 + ... + 5518225.

It is an arithmetic number, because the mean of its divisors is an integer number (8277336).

Almost surely, 2^22072894 is an apocalyptic number.

22072894 is a deficient number, since it is larger than the sum of its proper divisors (11036450).

22072894 is a wasteful number, since it uses less digits than its factorization.

22072894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11036449.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 22072894 is about 4698.1798603289. The cubic root of 22072894 is about 280.5130644025.

The spelling of 22072894 in words is "twenty-two million, seventy-two thousand, eight hundred ninety-four".