40445524 has 12 divisors (see below), whose sum is σ = 80891104. Its totient is φ = 17333784.

The previous prime is 40445491. The next prime is 40445527. The reversal of 40445524 is 42554404.

40445524 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1444483 = 40445524 / (4 + 0 + 4 + 4 + 5 + 5 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 40445492 and 40445501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722214 + ... + 722269.

Almost surely, 2^40445524 is an apocalyptic number.

It is an amenable number.

40445524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40445524 is a wasteful number, since it uses less digits than its factorization.

40445524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444494 (or 1444492 counting only the distinct ones).

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

The square root of 40445524 is about 6359.6795516755. The cubic root of 40445524 is about 343.2602297201.

Adding to 40445524 its reverse (42554404), we get a palindrome (82999928).

The spelling of 40445524 in words is "forty million, four hundred forty-five thousand, five hundred twenty-four".