16091380 has 24 divisors (see below), whose sum is σ = 33923232. Its totient is φ = 6411552.

The previous prime is 16091377. The next prime is 16091389. The reversal of 16091380 is 8319061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16091389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4239 + ... + 7081.

It is an arithmetic number, because the mean of its divisors is an integer number (1413468).

Almost surely, 2^16091380 is an apocalyptic number.

16091380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16091380 is an abundant number, since it is smaller than the sum of its proper divisors (17831852).

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

16091380 is a wasteful number, since it uses less digits than its factorization.

16091380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135 (or 3133 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 16091380 is about 4011.4062372191. The cubic root of 16091380 is about 252.4630145481.

It can be divided in two parts, 16091 and 380, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 16091380 in words is "sixteen million, ninety-one thousand, three hundred eighty".