40442554 has 16 divisors (see below), whose sum is σ = 62560008. Its totient is φ = 19593792.

The previous prime is 40442491. The next prime is 40442561. The reversal of 40442554 is 45524404.

40442554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31304025 + 9138529 = 5595^2 + 3023^2 .

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 7 ways as a sum of consecutive naturals, for example, 19512 + ... + 21484.

Almost surely, 2^40442554 is an apocalyptic number.

40442554 is a deficient number, since it is larger than the sum of its proper divisors (22117454).

40442554 is a wasteful number, since it uses less digits than its factorization.

40442554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289.

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

The square root of 40442554 is about 6359.4460450577. The cubic root of 40442554 is about 343.2518274072.

Adding to 40442554 its reverse (45524404), we get a palindrome (85966958).

The spelling of 40442554 in words is "forty million, four hundred forty-two thousand, five hundred fifty-four".