140342020 has 96 divisors (see below), whose sum is σ = 375379200. Its totient is φ = 42868224.

The previous prime is 140342011. The next prime is 140342051. The reversal of 140342020 is 20243041.

It is a junction number, because it is equal to n+sod(n) for n = 140341985 and 140342003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51451 + ... + 54109.

It is an arithmetic number, because the mean of its divisors is an integer number (3910200).

Almost surely, 2^140342020 is an apocalyptic number.

140342020 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 140342020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187689600).

140342020 is an abundant number, since it is smaller than the sum of its proper divisors (235037180).

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

140342020 is a wasteful number, since it uses less digits than its factorization.

140342020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717 (or 2715 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 140342020 is about 11846.6037327160. The cubic root of 140342020 is about 519.6719084203.

Adding to 140342020 its reverse (20243041), we get a palindrome (160585061).

The spelling of 140342020 in words is "one hundred forty million, three hundred forty-two thousand, twenty".