16099749 has 16 divisors (see below), whose sum is σ = 23927040. Its totient is φ = 10699200.

The previous prime is 16099729. The next prime is 16099751. The reversal of 16099749 is 94799061.

It is not a de Polignac number, because 16099749 - 2⁵ = 16099717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16099729) 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, 10084 + ... + 11570.

It is an arithmetic number, because the mean of its divisors is an integer number (1495440).

Almost surely, 2^16099749 is an apocalyptic number.

It is an amenable number.

16099749 is a deficient number, since it is larger than the sum of its proper divisors (7827291).

16099749 is a wasteful number, since it uses less digits than its factorization.

16099749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 16099749 is about 4012.4492520155. The cubic root of 16099749 is about 252.5067749710.

The spelling of 16099749 in words is "sixteen million, ninety-nine thousand, seven hundred forty-nine".