22746409 has 8 divisors (see below), whose sum is σ = 26091968. Its totient is φ = 19424880.

The previous prime is 22746397. The next prime is 22746419. The reversal of 22746409 is 90464722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22746409 - 2²³ = 14357801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22746419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3927 + ... + 7804.

It is an arithmetic number, because the mean of its divisors is an integer number (3261496).

Almost surely, 2^22746409 is an apocalyptic number.

It is an amenable number.

22746409 is a deficient number, since it is larger than the sum of its proper divisors (3345559).

22746409 is a wasteful number, since it uses less digits than its factorization.

22746409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 22746409 is about 4769.3195531438. The cubic root of 22746409 is about 283.3376459167.

The spelling of 22746409 in words is "twenty-two million, seven hundred forty-six thousand, four hundred nine".