16022749 has 4 divisors (see below), whose sum is σ = 16083936. Its totient is φ = 15961564.

The previous prime is 16022693. The next prime is 16022767. The reversal of 16022749 is 94722061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16022749 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16022749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16022779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30199 + ... + 30724.

It is an arithmetic number, because the mean of its divisors is an integer number (4020984).

Almost surely, 2^16022749 is an apocalyptic number.

It is an amenable number.

16022749 is a deficient number, since it is larger than the sum of its proper divisors (61187).

16022749 is an equidigital number, since it uses as much as digits as its factorization.

16022749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61186.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16022749 is about 4002.8426149425. The cubic root of 16022749 is about 252.1035781903.

The spelling of 16022749 in words is "sixteen million, twenty-two thousand, seven hundred forty-nine".