140404444 has 6 divisors (see below), whose sum is σ = 245707784. Its totient is φ = 70202220.

The previous prime is 140404423. The next prime is 140404447. The reversal of 140404444 is 444404041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140404447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17550552 + ... + 17550559.

Almost surely, 2^140404444 is an apocalyptic number.

It is an amenable number.

140404444 is a deficient number, since it is larger than the sum of its proper divisors (105303340).

140404444 is a wasteful number, since it uses less digits than its factorization.

140404444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35101115 (or 35101113 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 140404444 is about 11849.2381189678. The cubic root of 140404444 is about 519.7489468598.

Adding to 140404444 its reverse (444404041), we get a palindrome (584808485).

The spelling of 140404444 in words is "one hundred forty million, four hundred four thousand, four hundred forty-four".