40525444 has 6 divisors (see below), whose sum is σ = 70919534. Its totient is φ = 20262720.

The previous prime is 40525417. The next prime is 40525469. The reversal of 40525444 is 44452504.

It can be written as a sum of positive squares in only one way, i.e., 20811844 + 19713600 = 4562^2 + 4440^2 .

It is a super-2 number, since 2×40525444² = 3284623222794272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5065677 + ... + 5065684.

Almost surely, 2^40525444 is an apocalyptic number.

It is an amenable number.

40525444 is a deficient number, since it is larger than the sum of its proper divisors (30394090).

40525444 is a wasteful number, since it uses less digits than its factorization.

40525444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10131365 (or 10131363 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 40525444 is about 6365.9597862381. The cubic root of 40525444 is about 343.4861740298.

Adding to 40525444 its reverse (44452504), we get a palindrome (84977948).

The spelling of 40525444 in words is "forty million, five hundred twenty-five thousand, four hundred forty-four".