4144869 has 12 divisors (see below), whose sum is σ = 6302400. Its totient is φ = 2617704.

The previous prime is 4144849. The next prime is 4144871. The reversal of 4144869 is 9684414.

It is a happy number.

It is not a de Polignac number, because 4144869 - 2⁷ = 4144741 is a prime.

It is a super-2 number, since 2×4144869² = 34359878054322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11949 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (525200).

Almost surely, 2^4144869 is an apocalyptic number.

It is an amenable number.

4144869 is a deficient number, since it is larger than the sum of its proper divisors (2157531).

4144869 is a wasteful number, since it uses less digits than its factorization.

4144869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24264 (or 24261 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 4144869 is about 2035.8951348240. The cubic root of 4144869 is about 160.6338011398.

The spelling of 4144869 in words is "four million, one hundred forty-four thousand, eight hundred sixty-nine".