4165040 has 40 divisors (see below), whose sum is σ = 10566288. Its totient is φ = 1514240.

The previous prime is 4165039. The next prime is 4165043. The reversal of 4165040 is 405614.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (4165043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487 + ... + 3246.

Almost surely, 2^4165040 is an apocalyptic number.

4165040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4165040 is an abundant number, since it is smaller than the sum of its proper divisors (6401248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4165040 is a wasteful number, since it uses less digits than its factorization.

4165040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757 (or 4751 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4165040 is about 2040.8429630915. The cubic root of 4165040 is about 160.8939543167.

The spelling of 4165040 in words is "four million, one hundred sixty-five thousand, forty".