23390945 has 8 divisors (see below), whose sum is σ = 28097280. Its totient is φ = 18694000.

The previous prime is 23390933. The next prime is 23390953. The reversal of 23390945 is 54909332.

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

It is not a de Polignac number, because 23390945 - 2²² = 19196641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5570 + ... + 8820.

It is an arithmetic number, because the mean of its divisors is an integer number (3512160).

Almost surely, 2^23390945 is an apocalyptic number.

It is an amenable number.

23390945 is a deficient number, since it is larger than the sum of its proper divisors (4706335).

23390945 is a wasteful number, since it uses less digits than its factorization.

23390945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 23390945 is about 4836.4186129821. The cubic root of 23390945 is about 285.9889517632.

The spelling of 23390945 in words is "twenty-three million, three hundred ninety thousand, nine hundred forty-five".