16091204 has 12 divisors (see below), whose sum is σ = 28233324. Its totient is φ = 8024544.

The previous prime is 16091183. The next prime is 16091221. The reversal of 16091204 is 40219061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11888704 + 4202500 = 3448^2 + 2050^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16091204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3479 + ... + 6654.

It is an arithmetic number, because the mean of its divisors is an integer number (2352777).

Almost surely, 2^16091204 is an apocalyptic number.

It is an amenable number.

16091204 is a deficient number, since it is larger than the sum of its proper divisors (12142120).

16091204 is a wasteful number, since it uses less digits than its factorization.

16091204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10534 (or 10532 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 16091204 is about 4011.3842997150. The cubic root of 16091204 is about 252.4620941039.

The spelling of 16091204 in words is "sixteen million, ninety-one thousand, two hundred four".