862443438 has 16 divisors (see below), whose sum is σ = 1726731216. Its totient is φ = 287173760.

The previous prime is 862443419. The next prime is 862443451. The reversal of 862443438 is 834344268.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 862443438.

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, 70731 + ... + 82022.

It is an arithmetic number, because the mean of its divisors is an integer number (107920701).

Almost surely, 2^862443438 is an apocalyptic number.

862443438 is an abundant number, since it is smaller than the sum of its proper divisors (864287778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

862443438 is a wasteful number, since it uses less digits than its factorization.

862443438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153699.

The product of its digits is 442368, while the sum is 42.

The square root of 862443438 is about 29367.3873199507. The cubic root of 862443438 is about 951.8683225063.

The spelling of 862443438 in words is "eight hundred sixty-two million, four hundred forty-three thousand, four hundred thirty-eight".