16599942 has 48 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 5266800.

The previous prime is 16599929. The next prime is 16599943. The reversal of 16599942 is 24999561.

16599942 is a `hidden beast` number, since 16 + 599 + 9 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16599943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39409 + ... + 39827.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^16599942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16599942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18869760).

16599942 is an abundant number, since it is smaller than the sum of its proper divisors (21139578).

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

16599942 is a wasteful number, since it uses less digits than its factorization.

16599942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 526 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 16599942 is about 4074.3026397164. The cubic root of 16599942 is about 255.0951432740.

The spelling of 16599942 in words is "sixteen million, five hundred ninety-nine thousand, nine hundred forty-two".