287492472 has 24 divisors (see below), whose sum is σ = 778625640. Its totient is φ = 95830800.

The previous prime is 287492459. The next prime is 287492473. The reversal of 287492472 is 274294782.

287492472 is a `hidden beast` number, since 28 + 74 + 92 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287492473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1996404 + ... + 1996547.

It is an arithmetic number, because the mean of its divisors is an integer number (32442735).

Almost surely, 2^287492472 is an apocalyptic number.

It is an amenable number.

287492472 is an abundant number, since it is smaller than the sum of its proper divisors (491133168).

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

287492472 is a wasteful number, since it uses less digits than its factorization.

287492472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992963 (or 3992956 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 287492472 is about 16955.6029677508. The cubic root of 287492472 is about 659.9973002644.

The spelling of 287492472 in words is "two hundred eighty-seven million, four hundred ninety-two thousand, four hundred seventy-two".