16269391 has 8 divisors (see below), whose sum is σ = 17286480. Its totient is φ = 15259008.

The previous prime is 16269367. The next prime is 16269403. The reversal of 16269391 is 19396261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16269391 - 2¹⁷ = 16138319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16269391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16269311) 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 in 7 ways as a sum of consecutive naturals, for example, 3880 + ... + 6898.

It is an arithmetic number, because the mean of its divisors is an integer number (2160810).

Almost surely, 2^16269391 is an apocalyptic number.

16269391 is a deficient number, since it is larger than the sum of its proper divisors (1017089).

16269391 is a wasteful number, since it uses less digits than its factorization.

16269391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353.

The product of its digits is 17496, while the sum is 37.

The square root of 16269391 is about 4033.5333146015. The cubic root of 16269391 is about 253.3905605173.

The spelling of 16269391 in words is "sixteen million, two hundred sixty-nine thousand, three hundred ninety-one".