865068390 has 32 divisors (see below), whose sum is σ = 2306849760. Its totient is φ = 230684832.

The previous prime is 865068383. The next prime is 865068467. The reversal of 865068390 is 93860568.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1601709 + ... + 1602248.

It is an arithmetic number, because the mean of its divisors is an integer number (72089055).

Almost surely, 2^865068390 is an apocalyptic number.

865068390 is an abundant number, since it is smaller than the sum of its proper divisors (1441781370).

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

865068390 is a wasteful number, since it uses less digits than its factorization.

865068390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203973 (or 3203967 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 865068390 is about 29412.0449816058. The cubic root of 865068390 is about 952.8330535964.

The spelling of 865068390 in words is "eight hundred sixty-five million, sixty-eight thousand, three hundred ninety".