140142224420 has 48 divisors (see below), whose sum is σ = 339938581248. Its totient is φ = 47963112960.

The previous prime is 140142224399. The next prime is 140142224423. The reversal of 140142224420 is 24422241041.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 140142224420.

It is not an unprimeable number, because it can be changed into a prime (140142224423) 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, 18731852 + ... + 18739331.

It is an arithmetic number, because the mean of its divisors is an integer number (7082053776).

Almost surely, 2^140142224420 is an apocalyptic number.

140142224420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140142224420 is an abundant number, since it is smaller than the sum of its proper divisors (199796356828).

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

140142224420 is a wasteful number, since it uses less digits than its factorization.

140142224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37471220 (or 37471218 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 140142224420 its reverse (24422241041), we get a palindrome (164564465461).

The spelling of 140142224420 in words is "one hundred forty billion, one hundred forty-two million, two hundred twenty-four thousand, four hundred twenty".