22052709 has 16 divisors (see below), whose sum is σ = 37338240. Its totient is φ = 12601440.

The previous prime is 22052707. The next prime is 22052747. The reversal of 22052709 is 90725022.

It is a happy number.

It is not a de Polignac number, because 22052709 - 2¹ = 22052707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22052707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58152 + ... + 58529.

It is an arithmetic number, because the mean of its divisors is an integer number (2333640).

Almost surely, 2^22052709 is an apocalyptic number.

It is an amenable number.

22052709 is a deficient number, since it is larger than the sum of its proper divisors (15285531).

22052709 is a wasteful number, since it uses less digits than its factorization.

22052709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116697 (or 116691 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 22052709 is about 4696.0311966596. The cubic root of 22052709 is about 280.4275313948.

The spelling of 22052709 in words is "twenty-two million, fifty-two thousand, seven hundred nine".