22080357 has 30 divisors (see below), whose sum is σ = 35738802. Its totient is φ = 13579488.

The previous prime is 22080343. The next prime is 22080367. The reversal of 22080357 is 75308022.

It can be written as a sum of positive squares in 3 ways, for example, as 93636 + 21986721 = 306^2 + 4689^2 .

It is not a de Polignac number, because 22080357 - 2⁴ = 22080341 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22080357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22080367) 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 29 ways as a sum of consecutive naturals, for example, 12883 + ... + 14495.

Almost surely, 2^22080357 is an apocalyptic number.

22080357 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22080357 is a deficient number, since it is larger than the sum of its proper divisors (13658445).

22080357 is a wasteful number, since it uses less digits than its factorization.

22080357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651 (or 1629 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22080357 is about 4698.9740369574. The cubic root of 22080357 is about 280.5446753172.

Adding to 22080357 its reverse (75308022), we get a palindrome (97388379).

The spelling of 22080357 in words is "twenty-two million, eighty thousand, three hundred fifty-seven".