4040169 has 16 divisors (see below), whose sum is σ = 6519168. Its totient is φ = 2172672.

The previous prime is 4040161. The next prime is 4040173. The reversal of 4040169 is 9610404.

It is not a de Polignac number, because 4040169 - 2³ = 4040161 is a prime.

It is a super-2 number, since 2×4040169² = 32645931097122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4040161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5302 + ... + 6015.

It is an arithmetic number, because the mean of its divisors is an integer number (407448).

Almost surely, 2^4040169 is an apocalyptic number.

It is an amenable number.

4040169 is a deficient number, since it is larger than the sum of its proper divisors (2478999).

4040169 is a wasteful number, since it uses less digits than its factorization.

4040169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11344.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 4040169 is about 2010.0171641058. The cubic root of 4040169 is about 159.2697056138.

It can be divided in two parts, 40401 and 69, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 4040169 in words is "four million, forty thousand, one hundred sixty-nine".