23305345 has 16 divisors (see below), whose sum is σ = 32054400. Its totient is φ = 15934464.

The previous prime is 23305339. The next prime is 23305361. The reversal of 23305345 is 54350332.

It is a happy number.

It is not a de Polignac number, because 23305345 - 2⁵ = 23305313 is a prime.

It is an unprimeable number.

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, 14974 + ... + 16456.

It is an arithmetic number, because the mean of its divisors is an integer number (2003400).

Almost surely, 2^23305345 is an apocalyptic number.

It is an amenable number.

23305345 is a deficient number, since it is larger than the sum of its proper divisors (8749055).

23305345 is a wasteful number, since it uses less digits than its factorization.

23305345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 23305345 is about 4827.5609783824. The cubic root of 23305345 is about 285.6396630713.

Adding to 23305345 its reverse (54350332), we get a palindrome (77655677).

The spelling of 23305345 in words is "twenty-three million, three hundred five thousand, three hundred forty-five".