16423872 has 56 divisors (see below), whose sum is σ = 43897296. Its totient is φ = 5419008.

The previous prime is 16423871. The next prime is 16423873. The reversal of 16423872 is 27832461.

It is an interprime number because it is at equal distance from previous prime (16423871) and next prime (16423873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16423871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21318 + ... + 22074.

Almost surely, 2^16423872 is an apocalyptic number.

16423872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16423872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21948648).

16423872 is an abundant number, since it is smaller than the sum of its proper divisors (27473424).

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

16423872 is a wasteful number, since it uses less digits than its factorization.

16423872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 875 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 16423872 is about 4052.6376595990. The cubic root of 16423872 is about 254.1900328364.

The spelling of 16423872 in words is "sixteen million, four hundred twenty-three thousand, eight hundred seventy-two".