140389660 has 12 divisors (see below), whose sum is σ = 294818328. Its totient is φ = 56155856.

The previous prime is 140389657. The next prime is 140389693. The reversal of 140389660 is 66983041.

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, 3509722 + ... + 3509761.

It is an arithmetic number, because the mean of its divisors is an integer number (24568194).

Almost surely, 2^140389660 is an apocalyptic number.

140389660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140389660 is an abundant number, since it is smaller than the sum of its proper divisors (154428668).

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

140389660 is a wasteful number, since it uses less digits than its factorization.

140389660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7019492 (or 7019490 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 140389660 is about 11848.6142649679. The cubic root of 140389660 is about 519.7307037569.

The spelling of 140389660 in words is "one hundred forty million, three hundred eighty-nine thousand, six hundred sixty".