16861194 has 48 divisors (see below), whose sum is σ = 42619200. Its totient is φ = 4815720.

The previous prime is 16861183. The next prime is 16861213. The reversal of 16861194 is 49116861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4809 + ... + 7539.

It is an arithmetic number, because the mean of its divisors is an integer number (887900).

Almost surely, 2^16861194 is an apocalyptic number.

16861194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16861194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21309600).

16861194 is an abundant number, since it is smaller than the sum of its proper divisors (25758006).

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

16861194 is a wasteful number, since it uses less digits than its factorization.

16861194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 2743 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 16861194 is about 4106.2384246412. The cubic root of 16861194 is about 256.4264235008.

It can be divided in two parts, 1686119 and 4, that multiplied together give a palindrome (6744476).

The spelling of 16861194 in words is "sixteen million, eight hundred sixty-one thousand, one hundred ninety-four".