16390419 has 4 divisors (see below), whose sum is σ = 21853896. Its totient is φ = 10926944.

The previous prime is 16390417. The next prime is 16390427. The reversal of 16390419 is 91409361.

16390419 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.

It is a cyclic number.

It is not a de Polignac number, because 16390419 - 2¹ = 16390417 is a prime.

It is a super-2 number, since 2×16390419² = 537291669991122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16390419.

It is not an unprimeable number, because it can be changed into a prime (16390417) 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, 2731734 + ... + 2731739.

It is an arithmetic number, because the mean of its divisors is an integer number (5463474).

Almost surely, 2^16390419 is an apocalyptic number.

16390419 is a deficient number, since it is larger than the sum of its proper divisors (5463477).

16390419 is an equidigital number, since it uses as much as digits as its factorization.

16390419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463476.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 16390419 is about 4048.5082437856. The cubic root of 16390419 is about 254.0173330185.

The spelling of 16390419 in words is "sixteen million, three hundred ninety thousand, four hundred nineteen".