140820287352 has 32 divisors (see below), whose sum is σ = 352458708480. Its totient is φ = 46885697120.

The previous prime is 140820287351. The next prime is 140820287401. The reversal of 140820287352 is 253782028041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140820287351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3378774 + ... + 3420197.

It is an arithmetic number, because the mean of its divisors is an integer number (11014334640).

Almost surely, 2^140820287352 is an apocalyptic number.

140820287352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140820287352 is an abundant number, since it is smaller than the sum of its proper divisors (211638421128).

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

140820287352 is a wasteful number, since it uses less digits than its factorization.

140820287352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799843 (or 6799839 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 140820287352 in words is "one hundred forty billion, eight hundred twenty million, two hundred eighty-seven thousand, three hundred fifty-two".