140666744 has 8 divisors (see below), whose sum is σ = 263750160. Its totient is φ = 70333368.

The previous prime is 140666741. The next prime is 140666753. The reversal of 140666744 is 447666041.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 140666698 and 140666707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140666741) by changing a digit.

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 as a sum of consecutive naturals, namely, 8791664 + ... + 8791679.

It is an arithmetic number, because the mean of its divisors is an integer number (32968770).

Almost surely, 2^140666744 is an apocalyptic number.

It is an amenable number.

140666744 is a deficient number, since it is larger than the sum of its proper divisors (123083416).

140666744 is a wasteful number, since it uses less digits than its factorization.

140666744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17583349 (or 17583345 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 140666744 is about 11860.3011766144. The cubic root of 140666744 is about 520.0724060911.

The spelling of 140666744 in words is "one hundred forty million, six hundred sixty-six thousand, seven hundred forty-four".