16345469 has 6 divisors (see below), whose sum is σ = 19014174. Its totient is φ = 14010360.

The previous prime is 16345451. The next prime is 16345481. The reversal of 16345469 is 96454361.

It can be written as a sum of positive squares in only one way, i.e., 15697444 + 648025 = 3962^2 + 805^2 .

It is not a de Polignac number, because 16345469 - 2²⁰ = 15296893 is a prime.

It is a super-2 number, since 2×16345469² = 534348713659922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166742 + ... + 166839.

It is an arithmetic number, because the mean of its divisors is an integer number (3169029).

Almost surely, 2^16345469 is an apocalyptic number.

It is an amenable number.

16345469 is a deficient number, since it is larger than the sum of its proper divisors (2668705).

16345469 is an equidigital number, since it uses as much as digits as its factorization.

16345469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333595 (or 333588 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 16345469 is about 4042.9530049210. The cubic root of 16345469 is about 253.7849099810.

The spelling of 16345469 in words is "sixteen million, three hundred forty-five thousand, four hundred sixty-nine".