140340020 has 48 divisors (see below), whose sum is σ = 311931648. Its totient is φ = 52926720.

The previous prime is 140339999. The next prime is 140340029. The reversal of 140340020 is 20043041.

140340020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140339977 and 140340004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140340029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30512 + ... + 34808.

It is an arithmetic number, because the mean of its divisors is an integer number (6498576).

Almost surely, 2^140340020 is an apocalyptic number.

140340020 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 140340020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155965824).

140340020 is an abundant number, since it is smaller than the sum of its proper divisors (171591628).

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

140340020 is a wasteful number, since it uses less digits than its factorization.

140340020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400 (or 4398 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 140340020 is about 11846.5193200366. The cubic root of 140340020 is about 519.6694398112.

Adding to 140340020 its reverse (20043041), we get a palindrome (160383061).

The spelling of 140340020 in words is "one hundred forty million, three hundred forty thousand, twenty".