23380581 has 16 divisors (see below), whose sum is σ = 37177344. Its totient is φ = 12779184.

The previous prime is 23380571. The next prime is 23380601. The reversal of 23380581 is 18508332.

It is a happy number.

It is not a de Polignac number, because 23380581 - 2⁵ = 23380549 is a prime.

It is a super-2 number, since 2×23380581² = 1093303135795122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23380531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23721 + ... + 24686.

It is an arithmetic number, because the mean of its divisors is an integer number (2323584).

Almost surely, 2^23380581 is an apocalyptic number.

23380581 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23380581 is a deficient number, since it is larger than the sum of its proper divisors (13796763).

23380581 is a wasteful number, since it uses less digits than its factorization.

23380581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48440.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 23380581 is about 4835.3470402857. The cubic root of 23380581 is about 285.9467071060.

The spelling of 23380581 in words is "twenty-three million, three hundred eighty thousand, five hundred eighty-one".