23031406 has 16 divisors (see below), whose sum is σ = 35231328. Its totient is φ = 11289600.

The previous prime is 23031403. The next prime is 23031409. The reversal of 23031406 is 60413032.

It is an interprime number because it is at equal distance from previous prime (23031403) and next prime (23031409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33886 + ... + 34558.

It is an arithmetic number, because the mean of its divisors is an integer number (2201958).

Almost surely, 2^23031406 is an apocalyptic number.

23031406 is a deficient number, since it is larger than the sum of its proper divisors (12199922).

23031406 is a wasteful number, since it uses less digits than its factorization.

23031406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 23031406 is about 4799.1047081721. The cubic root of 23031406 is about 284.5160803980.

Adding to 23031406 its reverse (60413032), we get a palindrome (83444438).

The spelling of 23031406 in words is "twenty-three million, thirty-one thousand, four hundred six".