16672544 has 72 divisors (see below), whose sum is σ = 39529728. Its totient is φ = 6914880.

The previous prime is 16672541. The next prime is 16672547. The reversal of 16672544 is 44527661.

It is an interprime number because it is at equal distance from previous prime (16672541) and next prime (16672547).

Its product of digits (40320) is a multiple of the sum of its prime divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672541) 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 11 ways as a sum of consecutive naturals, for example, 537809 + ... + 537839.

It is an arithmetic number, because the mean of its divisors is an integer number (549024).

Almost surely, 2^16672544 is an apocalyptic number.

16672544 is a gapful number since it is divisible by the number (14) 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 16672544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19764864).

16672544 is an abundant number, since it is smaller than the sum of its proper divisors (22857184).

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

16672544 is an frugal number, since it uses more digits than its factorization.

16672544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 40 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 16672544 is about 4083.2026645759. The cubic root of 16672544 is about 255.4664996423.

The spelling of 16672544 in words is "sixteen million, six hundred seventy-two thousand, five hundred forty-four".