242243403453 has 12 divisors (see below), whose sum is σ = 350190021948. Its totient is φ = 161365040640.

The previous prime is 242243403433. The next prime is 242243403497. The reversal of 242243403453 is 354304342242.

242243403453 is a `hidden beast` number, since 2 + 4 + 2 + 243 + 403 + 4 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 211919360409 + 30324043044 = 460347^2 + 174138^2 .

It is not a de Polignac number, because 242243403453 - 2⁵ = 242243403421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242243403433) 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, 10868388 + ... + 10890653.

It is an arithmetic number, because the mean of its divisors is an integer number (29182501829).

Almost surely, 2^242243403453 is an apocalyptic number.

It is an amenable number.

242243403453 is a deficient number, since it is larger than the sum of its proper divisors (107946618495).

242243403453 is a wasteful number, since it uses less digits than its factorization.

242243403453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21760284 (or 21760281 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 36.

Adding to 242243403453 its reverse (354304342242), we get a palindrome (596547745695).

The spelling of 242243403453 in words is "two hundred forty-two billion, two hundred forty-three million, four hundred three thousand, four hundred fifty-three".