16205049 has 32 divisors (see below), whose sum is σ = 27648000. Its totient is φ = 9189072.

The previous prime is 16205047. The next prime is 16205053. The reversal of 16205049 is 94050261.

It is not a de Polignac number, because 16205049 - 2¹ = 16205047 is a prime.

It is a super-2 number, since 2×16205049² = 525207226184802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16205047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33592 + ... + 34070.

It is an arithmetic number, because the mean of its divisors is an integer number (864000).

Almost surely, 2^16205049 is an apocalyptic number.

It is an amenable number.

16205049 is a deficient number, since it is larger than the sum of its proper divisors (11442951).

16205049 is a wasteful number, since it uses less digits than its factorization.

16205049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 16205049 is about 4025.5495277043. The cubic root of 16205049 is about 253.0560838448.

The spelling of 16205049 in words is "sixteen million, two hundred five thousand, forty-nine".