16426331 has 2 divisors, whose sum is σ = 16426332. Its totient is φ = 16426330.

The previous prime is 16426327. The next prime is 16426339. The reversal of 16426331 is 13362461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16426331 - 2² = 16426327 is a prime.

It is a super-2 number, since 2×16426331² = 539648700243122, 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 16426331.

It is not a weakly prime, because it can be changed into another prime (16426339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213165 + 8213166.

It is an arithmetic number, because the mean of its divisors is an integer number (8213166).

Almost surely, 2^16426331 is an apocalyptic number.

16426331 is a deficient number, since it is larger than the sum of its proper divisors (1).

16426331 is an equidigital number, since it uses as much as digits as its factorization.

16426331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 16426331 is about 4052.9410309058. The cubic root of 16426331 is about 254.2027180729.

Adding to 16426331 its reverse (13362461), we get a palindrome (29788792).

The spelling of 16426331 in words is "sixteen million, four hundred twenty-six thousand, three hundred thirty-one".