16390468 has 6 divisors (see below), whose sum is σ = 28683326. Its totient is φ = 8195232.

The previous prime is 16390459. The next prime is 16390469. The reversal of 16390468 is 86409361.

It can be written as a sum of positive squares in only one way, i.e., 12517444 + 3873024 = 3538^2 + 1968^2 .

It is not an unprimeable number, because it can be changed into a prime (16390469) 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, 2048805 + ... + 2048812.

Almost surely, 2^16390468 is an apocalyptic number.

It is an amenable number.

16390468 is a deficient number, since it is larger than the sum of its proper divisors (12292858).

16390468 is a wasteful number, since it uses less digits than its factorization.

16390468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097621 (or 4097619 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 16390468 is about 4048.5142953928. The cubic root of 16390468 is about 254.0175861509.

The spelling of 16390468 in words is "sixteen million, three hundred ninety thousand, four hundred sixty-eight".