40025244 has 48 divisors (see below), whose sum is σ = 111379968. Its totient is φ = 10938048.

The previous prime is 40025239. The next prime is 40025261. The reversal of 40025244 is 44252004.

40025244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 40025244.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8427 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (2320416).

Almost surely, 2^40025244 is an apocalyptic number.

It is an amenable number.

40025244 is an abundant number, since it is smaller than the sum of its proper divisors (71354724).

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

40025244 is a wasteful number, since it uses less digits than its factorization.

40025244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20754 (or 20752 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 40025244 is about 6326.5507189937. The cubic root of 40025244 is about 342.0671185939.

Adding to 40025244 its reverse (44252004), we get a palindrome (84277248).

The spelling of 40025244 in words is "forty million, twenty-five thousand, two hundred forty-four".