866254350 has 96 divisors (see below), whose sum is σ = 2367598464. Its totient is φ = 208252800.

The previous prime is 866254349. The next prime is 866254369. The reversal of 866254350 is 53452668.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 866254299 and 866254308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78685 + ... + 89015.

It is an arithmetic number, because the mean of its divisors is an integer number (24662484).

Almost surely, 2^866254350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866254350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183799232).

866254350 is an abundant number, since it is smaller than the sum of its proper divisors (1501344114).

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

866254350 is a wasteful number, since it uses less digits than its factorization.

866254350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10402 (or 10397 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 866254350 is about 29432.1992042729. The cubic root of 866254350 is about 953.2682815681.

The spelling of 866254350 in words is "eight hundred sixty-six million, two hundred fifty-four thousand, three hundred fifty".