286975340 has 24 divisors (see below), whose sum is σ = 608619312. Its totient is φ = 113652800.

The previous prime is 286975333. The next prime is 286975357. The reversal of 286975340 is 43579682.

It is a junction number, because it is equal to n+sod(n) for n = 286975291 and 286975300.

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, 69014 + ... + 73053.

It is an arithmetic number, because the mean of its divisors is an integer number (25359138).

Almost surely, 2^286975340 is an apocalyptic number.

286975340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

286975340 is an abundant number, since it is smaller than the sum of its proper divisors (321643972).

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

286975340 is a wasteful number, since it uses less digits than its factorization.

286975340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142177 (or 142175 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 286975340 is about 16940.3465135752. The cubic root of 286975340 is about 659.6013356102.

The spelling of 286975340 in words is "two hundred eighty-six million, nine hundred seventy-five thousand, three hundred forty".