842518373 has 4 divisors (see below), whose sum is σ = 844684620. Its totient is φ = 840352128.

The previous prime is 842518361. The next prime is 842518409. The reversal of 842518373 is 373815248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 402483844 + 440034529 = 20062^2 + 20977^2 .

It is a cyclic number.

It is not a de Polignac number, because 842518373 - 2⁴ = 842518357 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 842518373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842517373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082540 + ... + 1083317.

It is an arithmetic number, because the mean of its divisors is an integer number (211171155).

Almost surely, 2^842518373 is an apocalyptic number.

It is an amenable number.

842518373 is a deficient number, since it is larger than the sum of its proper divisors (2166247).

842518373 is a wasteful number, since it uses less digits than its factorization.

842518373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166246.

The product of its digits is 161280, while the sum is 41.

The square root of 842518373 is about 29026.1670394146. The cubic root of 842518373 is about 944.4807849233.

The spelling of 842518373 in words is "eight hundred forty-two million, five hundred eighteen thousand, three hundred seventy-three".