140043412 has 24 divisors (see below), whose sum is σ = 256769856. Its totient is φ = 66705408.

The previous prime is 140043401. The next prime is 140043427. The reversal of 140043412 is 214340041.

It is a super-2 number, since 2×140043412² = 39224314489203488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140043412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20683 + ... + 26605.

It is an arithmetic number, because the mean of its divisors is an integer number (10698744).

Almost surely, 2^140043412 is an apocalyptic number.

It is an amenable number.

140043412 is a deficient number, since it is larger than the sum of its proper divisors (116726444).

140043412 is a wasteful number, since it uses less digits than its factorization.

140043412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6207 (or 6205 counting only the distinct ones).

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

The square root of 140043412 is about 11833.9939158342. The cubic root of 140043412 is about 519.3030752467.

Adding to 140043412 its reverse (214340041), we get a palindrome (354383453).

The spelling of 140043412 in words is "one hundred forty million, forty-three thousand, four hundred twelve".