287041248 has 72 divisors (see below), whose sum is σ = 879075288. Its totient is φ = 88319232.

The previous prime is 287041247. The next prime is 287041291. The reversal of 287041248 is 842140782.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287041241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34590 + ... + 42077.

It is an arithmetic number, because the mean of its divisors is an integer number (12209379).

Almost surely, 2^287041248 is an apocalyptic number.

It is an amenable number.

287041248 is an abundant number, since it is smaller than the sum of its proper divisors (592034040).

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

287041248 is a wasteful number, since it uses less digits than its factorization.

287041248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76696 (or 76685 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 287041248 is about 16942.2916985867. The cubic root of 287041248 is about 659.6518273786.

The spelling of 287041248 in words is "two hundred eighty-seven million, forty-one thousand, two hundred forty-eight".