423440785141 has 12 divisors (see below), whose sum is σ = 465772123852. Its totient is φ = 384667272000.

The previous prime is 423440785139. The next prime is 423440785153. The reversal of 423440785141 is 141587044324.

It can be written as a sum of positive squares in 2 ways, for example, as 156720182641 + 266720602500 = 395879^2 + 516450^2 .

It is not a de Polignac number, because 423440785141 - 2¹ = 423440785139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423440785111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1099920 + ... + 1434121.

Almost surely, 2^423440785141 is an apocalyptic number.

It is an amenable number.

423440785141 is a deficient number, since it is larger than the sum of its proper divisors (42331338711).

423440785141 is a wasteful number, since it uses less digits than its factorization.

423440785141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535444 (or 2535433 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 423440785141 in words is "four hundred twenty-three billion, four hundred forty million, seven hundred eighty-five thousand, one hundred forty-one".