40042244 has 12 divisors (see below), whose sum is σ = 76444368. Its totient is φ = 18201000.

The previous prime is 40042231. The next prime is 40042273. The reversal of 40042244 is 44224004.

40042244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 454982 + ... + 455069.

It is an arithmetic number, because the mean of its divisors is an integer number (6370364).

Almost surely, 2^40042244 is an apocalyptic number.

40042244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40042244 is a deficient number, since it is larger than the sum of its proper divisors (36402124).

40042244 is a wasteful number, since it uses less digits than its factorization.

40042244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910066 (or 910064 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40042244 is about 6327.8941204796. The cubic root of 40042244 is about 342.1155406841.

Adding to 40042244 its reverse (44224004), we get a palindrome (84266248).

The spelling of 40042244 in words is "forty million, forty-two thousand, two hundred forty-four".