288940 has 12 divisors (see below), whose sum is σ = 606816. Its totient is φ = 115568.

The previous prime is 288931. The next prime is 288947. The reversal of 288940 is 49882.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (288947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7204 + ... + 7243.

It is an arithmetic number, because the mean of its divisors is an integer number (50568).

2²⁸⁸⁹⁴⁰ is an apocalyptic number.

288940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288940 is an abundant number, since it is smaller than the sum of its proper divisors (317876).

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

288940 is a wasteful number, since it uses less digits than its factorization.

288940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14456 (or 14454 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 288940 is about 537.5313944320. The cubic root of 288940 is about 66.1103144430.

The spelling of 288940 in words is "two hundred eighty-eight thousand, nine hundred forty".