140404443 has 16 divisors (see below), whose sum is σ = 197289216. Its totient is φ = 88642400.

The previous prime is 140404423. The next prime is 140404447. The reversal of 140404443 is 344404041.

It is a cyclic number.

It is not a de Polignac number, because 140404443 - 2⁶ = 140404379 is a prime.

It is a super-2 number, since 2×140404443² = 39426815228280498, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 in 15 ways as a sum of consecutive naturals, for example, 3105 + ... + 17042.

It is an arithmetic number, because the mean of its divisors is an integer number (12330576).

Almost surely, 2^140404443 is an apocalyptic number.

140404443 is a deficient number, since it is larger than the sum of its proper divisors (56884773).

140404443 is a wasteful number, since it uses less digits than its factorization.

140404443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20274.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 140404443 is about 11849.2380767710. The cubic root of 140404443 is about 519.7489456258.

Adding to 140404443 its reverse (344404041), we get a palindrome (484808484).

The spelling of 140404443 in words is "one hundred forty million, four hundred four thousand, four hundred forty-three".