140421120424 has 32 divisors (see below), whose sum is σ = 286958841120. Its totient is φ = 64028903616.

The previous prime is 140421120403. The next prime is 140421120533. The reversal of 140421120424 is 424021124041.

It is a happy number.

It is a super-2 number, since 2×140421120424² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8125122 + ... + 8142385.

It is an arithmetic number, because the mean of its divisors is an integer number (8967463785).

Almost surely, 2^140421120424 is an apocalyptic number.

It is an amenable number.

140421120424 is an abundant number, since it is smaller than the sum of its proper divisors (146537720696).

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

140421120424 is a wasteful number, since it uses less digits than its factorization.

140421120424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16267609 (or 16267605 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 140421120424 its reverse (424021124041), we get a palindrome (564442244465).

The spelling of 140421120424 in words is "one hundred forty billion, four hundred twenty-one million, one hundred twenty thousand, four hundred twenty-four".