40244244 has 12 divisors (see below), whose sum is σ = 93903264. Its totient is φ = 13414744.

The previous prime is 40244209. The next prime is 40244249. The reversal of 40244244 is 44244204.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676832 + ... + 1676855.

It is an arithmetic number, because the mean of its divisors is an integer number (7825272).

Almost surely, 2^40244244 is an apocalyptic number.

It is an amenable number.

40244244 is an abundant number, since it is smaller than the sum of its proper divisors (53659020).

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

40244244 is a wasteful number, since it uses less digits than its factorization.

40244244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353694 (or 3353692 counting only the distinct ones).

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

The square root of 40244244 is about 6343.8351176556. The cubic root of 40244244 is about 342.6898629411.

Adding to 40244244 its reverse (44244204), we get a palindrome (84488448).

The spelling of 40244244 in words is "forty million, two hundred forty-four thousand, two hundred forty-four".