16490769 has 4 divisors (see below), whose sum is σ = 21987696. Its totient is φ = 10993844.

The previous prime is 16490767. The next prime is 16490797. The reversal of 16490769 is 96709461.

16490769 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 16490769 - 2¹ = 16490767 is a prime.

It is a super-2 number, since 2×16490769² = 543890924422722, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 16490769.

It is not an unprimeable number, because it can be changed into a prime (16490767) 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, 2748459 + ... + 2748464.

It is an arithmetic number, because the mean of its divisors is an integer number (5496924).

Almost surely, 2^16490769 is an apocalyptic number.

It is an amenable number.

16490769 is a deficient number, since it is larger than the sum of its proper divisors (5496927).

16490769 is an equidigital number, since it uses as much as digits as its factorization.

16490769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496926.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 16490769 is about 4060.8827857992. The cubic root of 16490769 is about 254.5346839096.

The spelling of 16490769 in words is "sixteen million, four hundred ninety thousand, seven hundred sixty-nine".