140642320340 has 24 divisors (see below), whose sum is σ = 295383580800. Its totient is φ = 56250317088.

The previous prime is 140642320337. The next prime is 140642320367. The reversal of 140642320340 is 43023246041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236912 + ... + 580871.

It is an arithmetic number, because the mean of its divisors is an integer number (12307649200).

Almost surely, 2^140642320340 is an apocalyptic number.

140642320340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140642320340 is an abundant number, since it is smaller than the sum of its proper divisors (154741260460).

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

140642320340 is a wasteful number, since it uses less digits than its factorization.

140642320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826391 (or 826389 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 140642320340 its reverse (43023246041), we get a palindrome (183665566381).

The spelling of 140642320340 in words is "one hundred forty billion, six hundred forty-two million, three hundred twenty thousand, three hundred forty".