23420449 has 8 divisors (see below), whose sum is σ = 25468352. Its totient is φ = 21407760.

The previous prime is 23420447. The next prime is 23420459. The reversal of 23420449 is 94402432.

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 23420449 - 2¹ = 23420447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23420443) 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, 7407 + ... + 10084.

It is an arithmetic number, because the mean of its divisors is an integer number (3183544).

Almost surely, 2^23420449 is an apocalyptic number.

It is an amenable number.

23420449 is a deficient number, since it is larger than the sum of its proper divisors (2047903).

23420449 is a wasteful number, since it uses less digits than its factorization.

23420449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17607.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 23420449 is about 4839.4678426455. The cubic root of 23420449 is about 286.1091446107.

The spelling of 23420449 in words is "twenty-three million, four hundred twenty thousand, four hundred forty-nine".