140321404 has 12 divisors (see below), whose sum is σ = 245971264. Its totient is φ = 70043904.

The previous prime is 140321399. The next prime is 140321437. The reversal of 140321404 is 404123041.

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, 26469 + ... + 31324.

Almost surely, 2^140321404 is an apocalyptic number.

It is an amenable number.

140321404 is a deficient number, since it is larger than the sum of its proper divisors (105649860).

140321404 is a wasteful number, since it uses less digits than its factorization.

140321404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58404 (or 58402 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140321404 is about 11845.7335779596. The cubic root of 140321404 is about 519.6464608727.

Adding to 140321404 its reverse (404123041), we get a palindrome (544444445).

The spelling of 140321404 in words is "one hundred forty million, three hundred twenty-one thousand, four hundred four".