22710409 has 4 divisors (see below), whose sum is σ = 22720516. Its totient is φ = 22700304.

The previous prime is 22710379. The next prime is 22710461. The reversal of 22710409 is 90401722.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22534009 + 176400 = 4747^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 22710409 - 2¹⁹ = 22186121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22710469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (5680129).

Almost surely, 2^22710409 is an apocalyptic number.

It is an amenable number.

22710409 is a deficient number, since it is larger than the sum of its proper divisors (10107).

22710409 is an equidigital number, since it uses as much as digits as its factorization.

22710409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22710409 is about 4765.5439353761. The cubic root of 22710409 is about 283.1880905716.

It can be divided in two parts, 2271040 and 9, that added together give a square (2271049 = 1507²).

The spelling of 22710409 in words is "twenty-two million, seven hundred ten thousand, four hundred nine".