140020662 has 16 divisors (see below), whose sum is σ = 283986432. Its totient is φ = 46016040.

The previous prime is 140020631. The next prime is 140020663. The reversal of 140020662 is 266020041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140020663) 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 in 7 ways as a sum of consecutive naturals, for example, 163918 + ... + 164769.

It is an arithmetic number, because the mean of its divisors is an integer number (17749152).

Almost surely, 2^140020662 is an apocalyptic number.

140020662 is an abundant number, since it is smaller than the sum of its proper divisors (143965770).

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

140020662 is a wasteful number, since it uses less digits than its factorization.

140020662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328763.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 140020662 is about 11833.0326628468. The cubic root of 140020662 is about 519.2749535269.

The spelling of 140020662 in words is "one hundred forty million, twenty thousand, six hundred sixty-two".