16860120 has 64 divisors (see below), whose sum is σ = 51084000. Its totient is φ = 4451328.

The previous prime is 16860091. The next prime is 16860121. The reversal of 16860120 is 2106861.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16860121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12436 + ... + 13724.

Almost surely, 2^16860120 is an apocalyptic number.

16860120 is a gapful number since it is divisible by the number (10) 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 16860120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25542000).

16860120 is an abundant number, since it is smaller than the sum of its proper divisors (34223880).

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

16860120 is a wasteful number, since it uses less digits than its factorization.

16860120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 16860120 is about 4106.1076459343. The cubic root of 16860120 is about 256.4209788918.

Adding to 16860120 its reverse (2106861), we get a palindrome (18966981).

The spelling of 16860120 in words is "sixteen million, eight hundred sixty thousand, one hundred twenty".