289229355 has 24 divisors (see below), whose sum is σ = 501761520. Its totient is φ = 154123200.

The previous prime is 289229351. The next prime is 289229371. The reversal of 289229355 is 553922982.

It is not a de Polignac number, because 289229355 - 2² = 289229351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 289229355.

It is not an unprimeable number, because it can be changed into a prime (289229351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73180 + ... + 77030.

It is an arithmetic number, because the mean of its divisors is an integer number (20906730).

Almost surely, 2^289229355 is an apocalyptic number.

289229355 is a deficient number, since it is larger than the sum of its proper divisors (212532165).

289229355 is a wasteful number, since it uses less digits than its factorization.

289229355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5531 (or 5528 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 289229355 is about 17006.7443974442. The cubic root of 289229355 is about 661.3237550292.

The spelling of 289229355 in words is "two hundred eighty-nine million, two hundred twenty-nine thousand, three hundred fifty-five".