4040842 has 16 divisors (see below), whose sum is σ = 6620040. Its totient is φ = 1838592.

The previous prime is 4040833. The next prime is 4040873. The reversal of 4040842 is 2480404.

4040842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2430481 + 1610361 = 1559^2 + 1269^2 .

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 7 ways as a sum of consecutive naturals, for example, 834 + ... + 2962.

Almost surely, 2^4040842 is an apocalyptic number.

4040842 is a deficient number, since it is larger than the sum of its proper divisors (2579198).

4040842 is a wasteful number, since it uses less digits than its factorization.

4040842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 4040842 is about 2010.1845686404. The cubic root of 4040842 is about 159.2785486895.

The spelling of 4040842 in words is "four million, forty thousand, eight hundred forty-two".