289281226 has 16 divisors (see below), whose sum is σ = 467745768. Its totient is φ = 133387200.

The previous prime is 289281191. The next prime is 289281227. The reversal of 289281226 is 622182982.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 238857025 + 50424201 = 15455^2 + 7101^2 .

It is not an unprimeable number, because it can be changed into a prime (289281227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25996 + ... + 35416.

Almost surely, 2^289281226 is an apocalyptic number.

289281226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

289281226 is a deficient number, since it is larger than the sum of its proper divisors (178464542).

289281226 is a wasteful number, since it uses less digits than its factorization.

289281226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10617.

The product of its digits is 55296, while the sum is 40.

The square root of 289281226 is about 17008.2693417055. The cubic root of 289281226 is about 661.3632870631.

The spelling of 289281226 in words is "two hundred eighty-nine million, two hundred eighty-one thousand, two hundred twenty-six".