287860048 has 80 divisors (see below), whose sum is σ = 696812544. Its totient is φ = 112343040.

The previous prime is 287859991. The next prime is 287860049. The reversal of 287860048 is 840068782.

It is a junction number, because it is equal to n+sod(n) for n = 287859986 and 287860013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287860049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56586 + ... + 61462.

Almost surely, 2^287860048 is an apocalyptic number.

287860048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287860048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348406272).

287860048 is an abundant number, since it is smaller than the sum of its proper divisors (408952496).

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

287860048 is a wasteful number, since it uses less digits than its factorization.

287860048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 287860048 is about 16966.4388720792. The cubic root of 287860048 is about 660.2784622335.

It can be divided in two parts, 2878 and 60048, that added together give a palindrome (62926).

The spelling of 287860048 in words is "two hundred eighty-seven million, eight hundred sixty thousand, forty-eight".