868403390 has 16 divisors (see below), whose sum is σ = 1564721280. Its totient is φ = 347006880.

The previous prime is 868403377. The next prime is 868403441. The reversal of 868403390 is 93304868.

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, 33905 + ... + 53724.

It is an arithmetic number, because the mean of its divisors is an integer number (97795080).

Almost surely, 2^868403390 is an apocalyptic number.

868403390 is a deficient number, since it is larger than the sum of its proper divisors (696317890).

868403390 is a wasteful number, since it uses less digits than its factorization.

868403390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88627.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 868403390 is about 29468.6849044880. The cubic root of 868403390 is about 954.0559331799.

The spelling of 868403390 in words is "eight hundred sixty-eight million, four hundred three thousand, three hundred ninety".