286302138 has 8 divisors (see below), whose sum is σ = 572604288. Its totient is φ = 95434044.

The previous prime is 286302113. The next prime is 286302157. The reversal of 286302138 is 831203682.

It is a sphenic number, since it is the product of 3 distinct primes.

286302138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 286302099 and 286302108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23858506 + ... + 23858517.

It is an arithmetic number, because the mean of its divisors is an integer number (71575536).

Almost surely, 2^286302138 is an apocalyptic number.

286302138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

286302138 is a wasteful number, since it uses less digits than its factorization.

286302138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47717028.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 286302138 is about 16920.4650645306. The cubic root of 286302138 is about 659.0851558193.

It can be divided in two parts, 286 and 302138, that multiplied together give a palindrome (86411468).

The spelling of 286302138 in words is "two hundred eighty-six million, three hundred two thousand, one hundred thirty-eight".