40442244 has 24 divisors (see below), whose sum is σ = 94547040. Its totient is φ = 13454784.

The previous prime is 40442243. The next prime is 40442273. The reversal of 40442244 is 44224404.

It is not an unprimeable number, because it can be changed into a prime (40442243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3867 + ... + 9789.

It is an arithmetic number, because the mean of its divisors is an integer number (3939460).

Almost surely, 2^40442244 is an apocalyptic number.

It is an amenable number.

40442244 is an abundant number, since it is smaller than the sum of its proper divisors (54104796).

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

40442244 is a wasteful number, since it uses less digits than its factorization.

40442244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499 (or 6497 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 40442244 is about 6359.4216718189. The cubic root of 40442244 is about 343.2509503744.

Adding to 40442244 its reverse (44224404), we get a palindrome (84666648).

The spelling of 40442244 in words is "forty million, four hundred forty-two thousand, two hundred forty-four".