16801380 has 72 divisors (see below), whose sum is σ = 52625664. Its totient is φ = 4334400.

The previous prime is 16801373. The next prime is 16801381. The reversal of 16801380 is 8310861.

It is not an unprimeable number, because it can be changed into a prime (16801381) 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, 4075 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (730912).

Almost surely, 2^16801380 is an apocalyptic number.

16801380 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 16801380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26312832).

16801380 is an abundant number, since it is smaller than the sum of its proper divisors (35824284).

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

16801380 is a wasteful number, since it uses less digits than its factorization.

16801380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057 (or 3052 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 16801380 is about 4098.9486456895. The cubic root of 16801380 is about 256.1228455009.

The spelling of 16801380 in words is "sixteen million, eight hundred one thousand, three hundred eighty".