289122980 has 24 divisors (see below), whose sum is σ = 621968760. Its totient is φ = 112828160.

The previous prime is 289122979. The next prime is 289123033. The reversal of 289122980 is 89221982.

289122980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28494244 + 260628736 = 5338^2 + 16144^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 175475 + ... + 177114.

It is an arithmetic number, because the mean of its divisors is an integer number (25915365).

Almost surely, 2^289122980 is an apocalyptic number.

289122980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289122980 is an abundant number, since it is smaller than the sum of its proper divisors (332845780).

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

289122980 is a wasteful number, since it uses less digits than its factorization.

289122980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352639 (or 352637 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 289122980 is about 17003.6166741079. The cubic root of 289122980 is about 661.2426695061.

The spelling of 289122980 in words is "two hundred eighty-nine million, one hundred twenty-two thousand, nine hundred eighty".