16999242 has 32 divisors (see below), whose sum is σ = 37400832. Its totient is φ = 5118144.

The previous prime is 16999237. The next prime is 16999259. The reversal of 16999242 is 24299961.

It is a junction number, because it is equal to n+sod(n) for n = 16999194 and 16999203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1348 + ... + 5984.

It is an arithmetic number, because the mean of its divisors is an integer number (1168776).

Almost surely, 2^16999242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16999242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18700416).

16999242 is an abundant number, since it is smaller than the sum of its proper divisors (20401590).

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

16999242 is a wasteful number, since it uses less digits than its factorization.

16999242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702.

The product of its digits is 69984, while the sum is 42.

The square root of 16999242 is about 4123.0137035911. The cubic root of 16999242 is about 257.1243373787.

The spelling of 16999242 in words is "sixteen million, nine hundred ninety-nine thousand, two hundred forty-two".