287494272 has 256 divisors, whose sum is σ = 936768000. Its totient is φ = 87340032.

The previous prime is 287494271. The next prime is 287494283. The reversal of 287494272 is 272494782.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (287494271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3639129 + ... + 3639207.

It is an arithmetic number, because the mean of its divisors is an integer number (3659250).

Almost surely, 2^287494272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287494272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468384000).

287494272 is an abundant number, since it is smaller than the sum of its proper divisors (649273728).

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

287494272 is an frugal number, since it uses more digits than its factorization.

287494272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 97 counting only the distinct ones).

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

The square root of 287494272 is about 16955.6560474669. The cubic root of 287494272 is about 659.9986776833.

The spelling of 287494272 in words is "two hundred eighty-seven million, four hundred ninety-four thousand, two hundred seventy-two".