288012140 has 48 divisors (see below), whose sum is σ = 657181728. Its totient is φ = 105391104.

The previous prime is 288012121. The next prime is 288012169. The reversal of 288012140 is 41210882.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24479 + ... + 34281.

It is an arithmetic number, because the mean of its divisors is an integer number (13691286).

Almost surely, 2^288012140 is an apocalyptic number.

288012140 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 288012140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328590864).

288012140 is an abundant number, since it is smaller than the sum of its proper divisors (369169588).

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

288012140 is a wasteful number, since it uses less digits than its factorization.

288012140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9938 (or 9936 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 288012140 is about 16970.9204228881. The cubic root of 288012140 is about 660.3947286756.

The spelling of 288012140 in words is "two hundred eighty-eight million, twelve thousand, one hundred forty".