16169444 has 12 divisors (see below), whose sum is σ = 29061564. Its totient is φ = 7866144.

The previous prime is 16169429. The next prime is 16169459. The reversal of 16169444 is 44496161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16169429) and next prime (16169459).

It can be written as a sum of positive squares in 2 ways, for example, as 10824100 + 5345344 = 3290^2 + 2312^2 .

It is a super-2 number, since 2×16169444² = 522901838538272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54479 + ... + 54774.

It is an arithmetic number, because the mean of its divisors is an integer number (2421797).

Almost surely, 2^16169444 is an apocalyptic number.

It is an amenable number.

16169444 is a deficient number, since it is larger than the sum of its proper divisors (12892120).

16169444 is a wasteful number, since it uses less digits than its factorization.

16169444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109294 (or 109292 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 16169444 is about 4021.1247182847. The cubic root of 16169444 is about 252.8706134858.

The spelling of 16169444 in words is "sixteen million, one hundred sixty-nine thousand, four hundred forty-four".