16428311 has 4 divisors (see below), whose sum is σ = 16436472. Its totient is φ = 16420152.

The previous prime is 16428301. The next prime is 16428319. The reversal of 16428311 is 11382461.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16428311 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 (16428319) 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, 1340 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (4109118).

Almost surely, 2^16428311 is an apocalyptic number.

16428311 is a deficient number, since it is larger than the sum of its proper divisors (8161).

16428311 is an equidigital number, since it uses as much as digits as its factorization.

16428311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8160.

The product of its digits is 1152, while the sum is 26.

The square root of 16428311 is about 4053.1852906079. The cubic root of 16428311 is about 254.2129313733.

The spelling of 16428311 in words is "sixteen million, four hundred twenty-eight thousand, three hundred eleven".