287012880 has 480 divisors, whose sum is σ = 1247920128. Its totient is φ = 57369600.

The previous prime is 287012821. The next prime is 287012897. The reversal of 287012880 is 88210782.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1718557 + ... + 1718723.

Almost surely, 2^287012880 is an apocalyptic number.

287012880 is a gapful number since it is divisible by the number (20) 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 287012880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623960064).

287012880 is an abundant number, since it is smaller than the sum of its proper divisors (960907248).

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

287012880 is a wasteful number, since it uses less digits than its factorization.

287012880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 287012880 is about 16941.4544830130. The cubic root of 287012880 is about 659.6300957521.

The spelling of 287012880 in words is "two hundred eighty-seven million, twelve thousand, eight hundred eighty".