286239421242 has 64 divisors (see below), whose sum is σ = 640235059200. Its totient is φ = 94792420800.

The previous prime is 286239421229. The next prime is 286239421283. The reversal of 286239421242 is 242124932682.

286239421242 is a `hidden beast` number, since 2 + 8 + 6 + 2 + 394 + 212 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7523367 + ... + 7561317.

It is an arithmetic number, because the mean of its divisors is an integer number (10003672800).

Almost surely, 2^286239421242 is an apocalyptic number.

286239421242 is an abundant number, since it is smaller than the sum of its proper divisors (353995637958).

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

286239421242 is a wasteful number, since it uses less digits than its factorization.

286239421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38868 (or 38862 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 286239421242 in words is "two hundred eighty-six billion, two hundred thirty-nine million, four hundred twenty-one thousand, two hundred forty-two".