40285842 has 16 divisors (see below), whose sum is σ = 80935680. Its totient is φ = 13367952.

The previous prime is 40285841. The next prime is 40285873. The reversal of 40285842 is 24858204.

It is a happy number.

40285842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40285841) 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, 13717 + ... + 16392.

It is an arithmetic number, because the mean of its divisors is an integer number (5058480).

Almost surely, 2^40285842 is an apocalyptic number.

40285842 is an abundant number, since it is smaller than the sum of its proper divisors (40649838).

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

40285842 is a wasteful number, since it uses less digits than its factorization.

40285842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30337.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 40285842 is about 6347.1128869747. The cubic root of 40285842 is about 342.8078947616.

It can be divided in two parts, 4028 and 5842, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 40285842 in words is "forty million, two hundred eighty-five thousand, eight hundred forty-two".