22277349 has 20 divisors (see below), whose sum is σ = 33451660. Its totient is φ = 14774400.

The previous prime is 22277303. The next prime is 22277357. The reversal of 22277349 is 94377222.

It can be written as a sum of positive squares in 2 ways, for example, as 8661249 + 13616100 = 2943^2 + 3690^2 .

It is not a de Polignac number, because 22277349 - 2⁷ = 22277221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22270349) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17949 + ... + 19149.

It is an arithmetic number, because the mean of its divisors is an integer number (1672583).

Almost surely, 2^22277349 is an apocalyptic number.

It is an amenable number.

22277349 is a deficient number, since it is larger than the sum of its proper divisors (11174311).

22277349 is a wasteful number, since it uses less digits than its factorization.

22277349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442 (or 1433 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 22277349 is about 4719.8886639411. Note that the first 3 decimals coincide. The cubic root of 22277349 is about 281.3765084203.

The spelling of 22277349 in words is "twenty-two million, two hundred seventy-seven thousand, three hundred forty-nine".