140420404 has 12 divisors (see below), whose sum is σ = 245828128. Its totient is φ = 70183800.

The previous prime is 140420377. The next prime is 140420417. The reversal of 140420404 is 404024041.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10009 + ... + 19519.

Almost surely, 2^140420404 is an apocalyptic number.

It is an amenable number.

140420404 is a deficient number, since it is larger than the sum of its proper divisors (105407724).

140420404 is a wasteful number, since it uses less digits than its factorization.

140420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13206 (or 13204 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 140420404 is about 11849.9115608514. The cubic root of 140420404 is about 519.7686396811.

Adding to 140420404 its reverse (404024041), we get a palindrome (544444445).

The spelling of 140420404 in words is "one hundred forty million, four hundred twenty thousand, four hundred four".