23439075 has 24 divisors (see below), whose sum is σ = 42277056. Its totient is φ = 11364000.

The previous prime is 23439071. The next prime is 23439077. The reversal of 23439075 is 57093432.

It is a happy number.

It is not a de Polignac number, because 23439075 - 2² = 23439071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (23439071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13381 + ... + 15030.

It is an arithmetic number, because the mean of its divisors is an integer number (1761544).

Almost surely, 2^23439075 is an apocalyptic number.

23439075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23439075 is a deficient number, since it is larger than the sum of its proper divisors (18837981).

23439075 is a wasteful number, since it uses less digits than its factorization.

23439075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28435 (or 28430 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 23439075 is about 4841.3918453271. The cubic root of 23439075 is about 286.1849708945.

The spelling of 23439075 in words is "twenty-three million, four hundred thirty-nine thousand, seventy-five".