16334401 has 2 divisors, whose sum is σ = 16334402. Its totient is φ = 16334400.

The previous prime is 16334387. The next prime is 16334419. The reversal of 16334401 is 10443361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15023376 + 1311025 = 3876^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 16334401 - 2¹¹ = 16332353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16334431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8167200 + 8167201.

It is an arithmetic number, because the mean of its divisors is an integer number (8167201).

Almost surely, 2^16334401 is an apocalyptic number.

It is an amenable number.

16334401 is a deficient number, since it is larger than the sum of its proper divisors (1).

16334401 is an equidigital number, since it uses as much as digits as its factorization.

16334401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 16334401 is about 4041.5839716626. The cubic root of 16334401 is about 253.7276152935.

Adding to 16334401 its reverse (10443361), we get a palindrome (26777762).

The spelling of 16334401 in words is "sixteen million, three hundred thirty-four thousand, four hundred one".