16349872 has 80 divisors (see below), whose sum is σ = 41283072. Its totient is φ = 6082560.

The previous prime is 16349867. The next prime is 16349873. The reversal of 16349872 is 27894361.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16349873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28048 + ... + 28624.

Almost surely, 2^16349872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16349872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20641536).

16349872 is an abundant number, since it is smaller than the sum of its proper divisors (24933200).

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

16349872 is a wasteful number, since it uses less digits than its factorization.

16349872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 620 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 16349872 is about 4043.4974959804. The cubic root of 16349872 is about 253.8076953910.

The spelling of 16349872 in words is "sixteen million, three hundred forty-nine thousand, eight hundred seventy-two".