40025444 has 12 divisors (see below), whose sum is σ = 70312704. Its totient is φ = 19936104.

The previous prime is 40025443. The next prime is 40025449. The reversal of 40025444 is 44452004.

40025444 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 (40025443) 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 3 ways as a sum of consecutive naturals, for example, 17972 + ... + 20075.

It is an arithmetic number, because the mean of its divisors is an integer number (5859392).

Almost surely, 2^40025444 is an apocalyptic number.

It is an amenable number.

40025444 is a deficient number, since it is larger than the sum of its proper divisors (30287260).

40025444 is a wasteful number, since it uses less digits than its factorization.

40025444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38314 (or 38312 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 40025444 is about 6326.5665253754. The cubic root of 40025444 is about 342.0676883453.

Adding to 40025444 its reverse (44452004), we get a palindrome (84477448).

The spelling of 40025444 in words is "forty million, twenty-five thousand, four hundred forty-four".