140021432430 has 64 divisors (see below), whose sum is σ = 371018527488. Its totient is φ = 33535612160.

The previous prime is 140021432423. The next prime is 140021432437. The reversal of 140021432430 is 34234120041.

It is an interprime number because it is at equal distance from previous prime (140021432423) and next prime (140021432437).

It is a self number, because there is not a number n which added to its sum of digits gives 140021432430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140021432437) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2528679 + ... + 2583458.

It is an arithmetic number, because the mean of its divisors is an integer number (5797164492).

Almost surely, 2^140021432430 is an apocalyptic number.

140021432430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140021432430 is an abundant number, since it is smaller than the sum of its proper divisors (230997095058).

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

140021432430 is a wasteful number, since it uses less digits than its factorization.

140021432430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112241.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 140021432430 its reverse (34234120041), we get a palindrome (174255552471).

The spelling of 140021432430 in words is "one hundred forty billion, twenty-one million, four hundred thirty-two thousand, four hundred thirty".