286975242 has 48 divisors (see below), whose sum is σ = 651456000. Its totient is φ = 91177632.

The previous prime is 286975237. The next prime is 286975267. The reversal of 286975242 is 242579682.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37759 + ... + 44717.

It is an arithmetic number, because the mean of its divisors is an integer number (13572000).

Almost surely, 2^286975242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286975242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325728000).

286975242 is an abundant number, since it is smaller than the sum of its proper divisors (364480758).

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

286975242 is a wasteful number, since it uses less digits than its factorization.

286975242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075 (or 7072 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 286975242 is about 16940.3436210722. The cubic root of 286975242 is about 659.6012605272.

The spelling of 286975242 in words is "two hundred eighty-six million, nine hundred seventy-five thousand, two hundred forty-two".