140329820 has 48 divisors (see below), whose sum is σ = 312681600. Its totient is φ = 52752960.

The previous prime is 140329817. The next prime is 140329853. The reversal of 140329820 is 28923041.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48371 + ... + 51189.

It is an arithmetic number, because the mean of its divisors is an integer number (6514200).

Almost surely, 2^140329820 is an apocalyptic number.

140329820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140329820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156340800).

140329820 is an abundant number, since it is smaller than the sum of its proper divisors (172351780).

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

140329820 is a wasteful number, since it uses less digits than its factorization.

140329820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978 (or 2976 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 140329820 is about 11846.0888060153. The cubic root of 140329820 is about 519.6568495401.

The spelling of 140329820 in words is "one hundred forty million, three hundred twenty-nine thousand, eight hundred twenty".