289223772 has 24 divisors (see below), whose sum is σ = 676165392. Its totient is φ = 96220800.

The previous prime is 289223749. The next prime is 289223773. The reversal of 289223772 is 277322982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289223773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16879 + ... + 29382.

It is an arithmetic number, because the mean of its divisors is an integer number (28173558).

Almost surely, 2^289223772 is an apocalyptic number.

It is an amenable number.

289223772 is an abundant number, since it is smaller than the sum of its proper divisors (386941620).

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

289223772 is a wasteful number, since it uses less digits than its factorization.

289223772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46789 (or 46787 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 289223772 is about 17006.5802558892. The cubic root of 289223772 is about 661.3194998199.

The spelling of 289223772 in words is "two hundred eighty-nine million, two hundred twenty-three thousand, seven hundred seventy-two".