23428375 has 32 divisors (see below), whose sum is σ = 31674240. Its totient is φ = 17248000.

The previous prime is 23428373. The next prime is 23428381. The reversal of 23428375 is 57382432.

It is not a de Polignac number, because 23428375 - 2¹ = 23428373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23428375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23428373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83235 + ... + 83515.

It is an arithmetic number, because the mean of its divisors is an integer number (989820).

Almost surely, 2^23428375 is an apocalyptic number.

23428375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23428375 is a deficient number, since it is larger than the sum of its proper divisors (8245865).

23428375 is a wasteful number, since it uses less digits than its factorization.

23428375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 338 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 23428375 is about 4840.2866650644. The cubic root of 23428375 is about 286.1414161997.

The spelling of 23428375 in words is "twenty-three million, four hundred twenty-eight thousand, three hundred seventy-five".