23490238 has 4 divisors (see below), whose sum is σ = 35235360. Its totient is φ = 11745118.

The previous prime is 23490217. The next prime is 23490241. The reversal of 23490238 is 83209432.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5872558 + ... + 5872561.

It is an arithmetic number, because the mean of its divisors is an integer number (8808840).

Almost surely, 2^23490238 is an apocalyptic number.

23490238 is a deficient number, since it is larger than the sum of its proper divisors (11745122).

23490238 is a wasteful number, since it uses less digits than its factorization.

23490238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11745121.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 23490238 is about 4846.6728794091. The cubic root of 23490238 is about 286.3930485163.

The spelling of 23490238 in words is "twenty-three million, four hundred ninety thousand, two hundred thirty-eight".