140286940 has 12 divisors (see below), whose sum is σ = 294602616. Its totient is φ = 56114768.

The previous prime is 140286931. The next prime is 140286961. The reversal of 140286940 is 49682041.

It is a junction number, because it is equal to n+sod(n) for n = 140286896 and 140286905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3507154 + ... + 3507193.

It is an arithmetic number, because the mean of its divisors is an integer number (24550218).

Almost surely, 2^140286940 is an apocalyptic number.

140286940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140286940 is an abundant number, since it is smaller than the sum of its proper divisors (154315676).

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

140286940 is a wasteful number, since it uses less digits than its factorization.

140286940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014356 (or 7014354 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 140286940 is about 11844.2787876679. The cubic root of 140286940 is about 519.6039143532.

The spelling of 140286940 in words is "one hundred forty million, two hundred eighty-six thousand, nine hundred forty".