140231424420 has 192 divisors, whose sum is σ = 444647024640. Its totient is φ = 36684337536.

The previous prime is 140231424407. The next prime is 140231424451. The reversal of 140231424420 is 24424132041.

140231424420 is a `hidden beast` number, since 1 + 4 + 0 + 231 + 4 + 2 + 4 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5939559 + ... + 5963121.

It is an arithmetic number, because the mean of its divisors is an integer number (2315869920).

Almost surely, 2^140231424420 is an apocalyptic number.

140231424420 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 140231424420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222323512320).

140231424420 is an abundant number, since it is smaller than the sum of its proper divisors (304415600220).

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

140231424420 is a wasteful number, since it uses less digits than its factorization.

140231424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23791 (or 23783 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 140231424420 its reverse (24424132041), we get a palindrome (164655556461).

The spelling of 140231424420 in words is "one hundred forty billion, two hundred thirty-one million, four hundred twenty-four thousand, four hundred twenty".