140224234433421 has 8 divisors (see below), whose sum is σ = 186969136309120. Its totient is φ = 93481077756672.

The previous prime is 140224234433419. The next prime is 140224234433441. The reversal of 140224234433421 is 124334432422041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140224234433421 - 2¹ = 140224234433419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140224234433421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140224234433401) 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, 436112245 + ... + 436433658.

It is an arithmetic number, because the mean of its divisors is an integer number (23371142038640).

Almost surely, 2^{140224234433421} is an apocalyptic number.

It is an amenable number.

140224234433421 is a deficient number, since it is larger than the sum of its proper divisors (46744901875699).

140224234433421 is an equidigital number, since it uses as much as digits as its factorization.

140224234433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872599475.

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 140224234433421 its reverse (124334432422041), we get a palindrome (264558666855462).

The spelling of 140224234433421 in words is "one hundred forty trillion, two hundred twenty-four billion, two hundred thirty-four million, four hundred thirty-three thousand, four hundred twenty-one".