23903406 has 48 divisors (see below), whose sum is σ = 56019600. Its totient is φ = 7340544.

The previous prime is 23903381. The next prime is 23903431. The reversal of 23903406 is 60430932.

It is an interprime number because it is at equal distance from previous prime (23903381) and next prime (23903431).

It is a self number, because there is not a number n which added to its sum of digits gives 23903406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11710 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (1167075).

Almost surely, 2^23903406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23903406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28009800).

23903406 is an abundant number, since it is smaller than the sum of its proper divisors (32116194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23903406 is a wasteful number, since it uses less digits than its factorization.

23903406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 23903406 is about 4889.1109621280. The cubic root of 23903406 is about 288.0624141349.

The spelling of 23903406 in words is "twenty-three million, nine hundred three thousand, four hundred six".