16002749 has 16 divisors (see below), whose sum is σ = 18768000. Its totient is φ = 13362624.

The previous prime is 16002737. The next prime is 16002757. The reversal of 16002749 is 94720061.

It is a cyclic number.

It is not a de Polignac number, because 16002749 - 2¹⁶ = 15937213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16002709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69767 + ... + 69995.

It is an arithmetic number, because the mean of its divisors is an integer number (1173000).

Almost surely, 2^16002749 is an apocalyptic number.

It is an amenable number.

16002749 is a deficient number, since it is larger than the sum of its proper divisors (2765251).

16002749 is a wasteful number, since it uses less digits than its factorization.

16002749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16002749 is about 4000.3436102415. The cubic root of 16002749 is about 251.9986404983.

The spelling of 16002749 in words is "sixteen million, two thousand, seven hundred forty-nine".