23203406 has 8 divisors (see below), whose sum is σ = 35245920. Its totient is φ = 11454768.

The previous prime is 23203391. The next prime is 23203421. The reversal of 23203406 is 60430232.

It is an interprime number because it is at equal distance from previous prime (23203391) and next prime (23203421).

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

It is a super-3 number, since 3×23203406³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 73271 + ... + 73586.

It is an arithmetic number, because the mean of its divisors is an integer number (4405740).

Almost surely, 2^23203406 is an apocalyptic number.

23203406 is a deficient number, since it is larger than the sum of its proper divisors (12042514).

23203406 is a wasteful number, since it uses less digits than its factorization.

23203406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146938.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 23203406 is about 4816.9913846716. The cubic root of 23203406 is about 285.2225859379. Note that the first 3 decimals are identical.

Adding to 23203406 its reverse (60430232), we get a palindrome (83633638).

The spelling of 23203406 in words is "twenty-three million, two hundred three thousand, four hundred six".