288121260 has 48 divisors (see below), whose sum is σ = 921989376. Its totient is φ = 65856192.

The previous prime is 288121243. The next prime is 288121271. The reversal of 288121260 is 62121882.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 342582 + ... + 343421.

It is an arithmetic number, because the mean of its divisors is an integer number (19208112).

Almost surely, 2^288121260 is an apocalyptic number.

288121260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288121260 is an abundant number, since it is smaller than the sum of its proper divisors (633868116).

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

288121260 is a wasteful number, since it uses less digits than its factorization.

288121260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686022 (or 686020 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 288121260 is about 16974.1350295089. The cubic root of 288121260 is about 660.4781200376.

The spelling of 288121260 in words is "two hundred eighty-eight million, one hundred twenty-one thousand, two hundred sixty".