140231420 has 48 divisors (see below), whose sum is σ = 337229760. Its totient is φ = 47983104.

The previous prime is 140231411. The next prime is 140231449. The reversal of 140231420 is 24132041.

140231420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130646 + ... + 131714.

It is an arithmetic number, because the mean of its divisors is an integer number (7025620).

Almost surely, 2^140231420 is an apocalyptic number.

140231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140231420 is an abundant number, since it is smaller than the sum of its proper divisors (196998340).

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

140231420 is a wasteful number, since it uses less digits than its factorization.

140231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140231420 is about 11841.9348081300. The cubic root of 140231420 is about 519.5353591101.

Adding to 140231420 its reverse (24132041), we get a palindrome (164363461).

The spelling of 140231420 in words is "one hundred forty million, two hundred thirty-one thousand, four hundred twenty".