862378445 has 18 divisors (see below), whose sum is σ = 1083701934. Its totient is φ = 658751280.

The previous prime is 862378427. The next prime is 862378453. The reversal of 862378445 is 544873268.

It can be written as a sum of positive squares in only one way, i.e., 689902756 + 172475689 = 26266^2 + 13133^2 .

It is not a de Polignac number, because 862378445 - 2⁸ = 862378189 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 862378445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1510010 + ... + 1510580.

It is an arithmetic number, because the mean of its divisors is an integer number (60205663).

Almost surely, 2^862378445 is an apocalyptic number.

It is an amenable number.

862378445 is a deficient number, since it is larger than the sum of its proper divisors (221323489).

862378445 is an frugal number, since it uses more digits than its factorization.

862378445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 599 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 47.

The square root of 862378445 is about 29366.2807485047. The cubic root of 862378445 is about 951.8444112447.

The spelling of 862378445 in words is "eight hundred sixty-two million, three hundred seventy-eight thousand, four hundred forty-five".