140422404389 has 2 divisors, whose sum is σ = 140422404390. Its totient is φ = 140422404388.

The previous prime is 140422404371. The next prime is 140422404431. The reversal of 140422404389 is 983404224041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140293695364 + 128709025 = 374558^2 + 11345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140422404389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140422404589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70211202194 + 70211202195.

It is an arithmetic number, because the mean of its divisors is an integer number (70211202195).

Almost surely, 2^140422404389 is an apocalyptic number.

It is an amenable number.

140422404389 is a deficient number, since it is larger than the sum of its proper divisors (1).

140422404389 is an equidigital number, since it uses as much as digits as its factorization.

140422404389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 140422404389 in words is "one hundred forty billion, four hundred twenty-two million, four hundred four thousand, three hundred eighty-nine".