140012404 has 18 divisors (see below), whose sum is σ = 285025650. Its totient is φ = 60005232.

The previous prime is 140012393. The next prime is 140012413. The reversal of 140012404 is 404210041.

It can be written as a sum of positive squares in only one way, i.e., 139948900 + 63504 = 11830^2 + 252^2 .

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 5 ways as a sum of consecutive naturals, for example, 356979 + ... + 357370.

Almost surely, 2^140012404 is an apocalyptic number.

140012404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140012404 is an abundant number, since it is smaller than the sum of its proper divisors (145013246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140012404 is a wasteful number, since it uses less digits than its factorization.

140012404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714367 (or 714358 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 140012404 is about 11832.6837192583. The cubic root of 140012404 is about 519.2647448981.

Adding to 140012404 its reverse (404210041), we get a palindrome (544222445).

The spelling of 140012404 in words is "one hundred forty million, twelve thousand, four hundred four".