22072694 has 16 divisors (see below), whose sum is σ = 38208768. Its totient is φ = 9367272.

The previous prime is 22072691. The next prime is 22072697. The reversal of 22072694 is 49627022.

It is an interprime number because it is at equal distance from previous prime (22072691) and next prime (22072697).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22072694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22072691) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6212 + ... + 9095.

It is an arithmetic number, because the mean of its divisors is an integer number (2388048).

Almost surely, 2^22072694 is an apocalyptic number.

22072694 is a deficient number, since it is larger than the sum of its proper divisors (16136074).

22072694 is a wasteful number, since it uses less digits than its factorization.

22072694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15419.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 22072694 is about 4698.1585754421. The cubic root of 22072694 is about 280.5122171676.

The spelling of 22072694 in words is "twenty-two million, seventy-two thousand, six hundred ninety-four".