16349880 has 128 divisors (see below), whose sum is σ = 52876800. Its totient is φ = 4032000.

The previous prime is 16349873. The next prime is 16349897. The reversal of 16349880 is 8894361.

16349880 = T₃₄₉ + T₃₅₀ + ... + T₅₁₉.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161830 + ... + 161930.

It is an arithmetic number, because the mean of its divisors is an integer number (413100).

Almost surely, 2^16349880 is an apocalyptic number.

16349880 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 16349880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26438400).

16349880 is an abundant number, since it is smaller than the sum of its proper divisors (36526920).

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

16349880 is a wasteful number, since it uses less digits than its factorization.

16349880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 16349880 is about 4043.4984852229. The cubic root of 16349880 is about 253.8077367871.

The spelling of 16349880 in words is "sixteen million, three hundred forty-nine thousand, eight hundred eighty".