4145940 has 72 divisors (see below), whose sum is σ = 12999168. Its totient is φ = 1068480.

The previous prime is 4145891. The next prime is 4145951. The reversal of 4145940 is 495414.

4145940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5209 + ... + 5951.

It is an arithmetic number, because the mean of its divisors is an integer number (180544).

Almost surely, 2^4145940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4145940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6499584).

4145940 is an abundant number, since it is smaller than the sum of its proper divisors (8853228).

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

4145940 is a wasteful number, since it uses less digits than its factorization.

4145940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4145940 is about 2036.1581470996. The cubic root of 4145940 is about 160.6476354319.

The spelling of 4145940 in words is "four million, one hundred forty-five thousand, nine hundred forty".