287378474 has 8 divisors (see below), whose sum is σ = 431796420. Its totient is φ = 143446336.

The previous prime is 287378473. The next prime is 287378479. The reversal of 287378474 is 474873782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 252651025 + 34727449 = 15895^2 + 5893^2 .

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

It is not an unprimeable number, because it can be changed into a prime (287378473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119969 + ... + 122340.

Almost surely, 2^287378474 is an apocalyptic number.

287378474 is a deficient number, since it is larger than the sum of its proper divisors (144417946).

287378474 is a wasteful number, since it uses less digits than its factorization.

287378474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242904.

The product of its digits is 2107392, while the sum is 50.

The square root of 287378474 is about 16952.2409728036. The cubic root of 287378474 is about 659.9100535520.

The spelling of 287378474 in words is "two hundred eighty-seven million, three hundred seventy-eight thousand, four hundred seventy-four".