16390016 has 16 divisors (see below), whose sum is σ = 32652240. Its totient is φ = 8194944.

The previous prime is 16390013. The next prime is 16390019. The reversal of 16390016 is 61009361.

It is an interprime number because it is at equal distance from previous prime (16390013) and next prime (16390019).

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16390013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63896 + ... + 64151.

It is an arithmetic number, because the mean of its divisors is an integer number (2040765).

Almost surely, 2^16390016 is an apocalyptic number.

16390016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16390016 is a deficient number, since it is larger than the sum of its proper divisors (16262224).

16390016 is an equidigital number, since it uses as much as digits as its factorization.

16390016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128061 (or 128049 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 16390016 is about 4048.4584720607. The cubic root of 16390016 is about 254.0152511148.

Adding to 16390016 its reverse (61009361), we get a palindrome (77399377).

The spelling of 16390016 in words is "sixteen million, three hundred ninety thousand, sixteen".