23445019 has 8 divisors (see below), whose sum is σ = 25836272. Its totient is φ = 21137760.

The previous prime is 23445011. The next prime is 23445041. The reversal of 23445019 is 91054432.

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 23445019 - 2³ = 23445011 is a prime.

It is a super-2 number, since 2×23445019² = 1099337831820722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23445011) 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, 20412 + ... + 21529.

It is an arithmetic number, because the mean of its divisors is an integer number (3229534).

Almost surely, 2^23445019 is an apocalyptic number.

23445019 is a deficient number, since it is larger than the sum of its proper divisors (2391253).

23445019 is a wasteful number, since it uses less digits than its factorization.

23445019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41997.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23445019 is about 4842.0056794680. The cubic root of 23445019 is about 286.2091604113.

The spelling of 23445019 in words is "twenty-three million, four hundred forty-five thousand, nineteen".