140223421420 has 24 divisors (see below), whose sum is σ = 294671908944. Its totient is φ = 56050754496.

The previous prime is 140223421417. The next prime is 140223421421. The reversal of 140223421420 is 24124322041.

It is not an unprimeable number, because it can be changed into a prime (140223421421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2383594 + ... + 2441713.

It is an arithmetic number, because the mean of its divisors is an integer number (12277996206).

Almost surely, 2^140223421420 is an apocalyptic number.

140223421420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140223421420 is an abundant number, since it is smaller than the sum of its proper divisors (154448487524).

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

140223421420 is a wasteful number, since it uses less digits than its factorization.

140223421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826769 (or 4826767 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 140223421420 its reverse (24124322041), we get a palindrome (164347743461).

The spelling of 140223421420 in words is "one hundred forty billion, two hundred twenty-three million, four hundred twenty-one thousand, four hundred twenty".