288722 has 16 divisors (see below), whose sum is σ = 508032. Its totient is φ = 120480.

The previous prime is 288697. The next prime is 288731. The reversal of 288722 is 227882.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2²⁸⁸⁷²² is an apocalyptic number.

288722 is a deficient number, since it is larger than the sum of its proper divisors (219310).

288722 is a wasteful number, since it uses less digits than its factorization.

288722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its digits is 3584, while the sum is 29.

The square root of 288722 is about 537.3285773156. The cubic root of 288722 is about 66.0936839146.

It can be divided in two parts, 288 and 722, that multiplied together give a square (207936 = 456²).

The spelling of 288722 in words is "two hundred eighty-eight thousand, seven hundred twenty-two".