140680340 has 12 divisors (see below), whose sum is σ = 295428756. Its totient is φ = 56272128.

The previous prime is 140680339. The next prime is 140680349. The reversal of 140680340 is 43086041.

It can be written as a sum of positive squares in 2 ways, for example, as 100560784 + 40119556 = 10028^2 + 6334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140680349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3516989 + ... + 3517028.

It is an arithmetic number, because the mean of its divisors is an integer number (24619063).

Almost surely, 2^140680340 is an apocalyptic number.

140680340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140680340 is an abundant number, since it is smaller than the sum of its proper divisors (154748416).

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

140680340 is a wasteful number, since it uses less digits than its factorization.

140680340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034026 (or 7034024 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 140680340 is about 11860.8743353937. The cubic root of 140680340 is about 520.0891612398.

The spelling of 140680340 in words is "one hundred forty million, six hundred eighty thousand, three hundred forty".