16439112 has 80 divisors (see below), whose sum is σ = 48090240. Its totient is φ = 5236704.

The previous prime is 16439107. The next prime is 16439117. The reversal of 16439112 is 21193461.

16439112 is a `hidden beast` number, since 1 + 643 + 9 + 1 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (16439107) and next prime (16439117).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (16439117) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14353 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (601128).

Almost surely, 2^16439112 is an apocalyptic number.

16439112 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 16439112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24045120).

16439112 is an abundant number, since it is smaller than the sum of its proper divisors (31651128).

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

16439112 is a wasteful number, since it uses less digits than its factorization.

16439112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1131 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 16439112 is about 4054.5174805395. The cubic root of 16439112 is about 254.2686309996.

16439112 divided by its sum of digits (27) gives a triangular number (608856 = T₁₁₀₃).

The spelling of 16439112 in words is "sixteen million, four hundred thirty-nine thousand, one hundred twelve".