22049406 has 12 divisors (see below), whose sum is σ = 47773752. Its totient is φ = 7349796.

The previous prime is 22049389. The next prime is 22049407. The reversal of 22049406 is 60494022.

It is a self number, because there is not a number n which added to its sum of digits gives 22049406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22049407) 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 5 ways as a sum of consecutive naturals, for example, 612466 + ... + 612501.

It is an arithmetic number, because the mean of its divisors is an integer number (3981146).

Almost surely, 2^22049406 is an apocalyptic number.

22049406 is an abundant number, since it is smaller than the sum of its proper divisors (25724346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22049406 is a wasteful number, since it uses less digits than its factorization.

22049406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224975 (or 1224972 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22049406 is about 4695.6795035437. The cubic root of 22049406 is about 280.4135301160.

The spelling of 22049406 in words is "twenty-two million, forty-nine thousand, four hundred six".