140442445 has 32 divisors (see below), whose sum is σ = 200309760. Its totient is φ = 93181440.

The previous prime is 140442443. The next prime is 140442451. The reversal of 140442445 is 544244041.

It is not a de Polignac number, because 140442445 - 2¹ = 140442443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140442443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62532 + ... + 64738.

It is an arithmetic number, because the mean of its divisors is an integer number (6259680).

Almost surely, 2^140442445 is an apocalyptic number.

It is an amenable number.

140442445 is a deficient number, since it is larger than the sum of its proper divisors (59867315).

140442445 is a wasteful number, since it uses less digits than its factorization.

140442445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 140442445 is about 11850.8415313006. The cubic root of 140442445 is about 519.7958333104.

Adding to 140442445 its reverse (544244041), we get a palindrome (684686486).

The spelling of 140442445 in words is "one hundred forty million, four hundred forty-two thousand, four hundred forty-five".