202423424431444 has 24 divisors (see below), whose sum is σ = 363842233662600. Its totient is φ = 98468908949376.

The previous prime is 202423424431429. The next prime is 202423424431457. The reversal of 202423424431444 is 444134424324202.

It can be written as a sum of positive squares in 4 ways, for example, as 15314402143044 + 187109022288400 = 3913362^2 + 13678780^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202423424431444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49063219 + ... + 53028730.

It is an arithmetic number, because the mean of its divisors is an integer number (15160093069275).

Almost surely, 2^{202423424431444} is an apocalyptic number.

It is an amenable number.

202423424431444 is a deficient number, since it is larger than the sum of its proper divisors (161418809231156).

202423424431444 is a wasteful number, since it uses less digits than its factorization.

202423424431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102105387 (or 102105385 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 43.

Adding to 202423424431444 its reverse (444134424324202), we get a palindrome (646557848755646).

The spelling of 202423424431444 in words is "two hundred two trillion, four hundred twenty-three billion, four hundred twenty-four million, four hundred thirty-one thousand, four hundred forty-four".