289793412 has 36 divisors (see below), whose sum is σ = 750403836. Its totient is φ = 94241280.

The previous prime is 289793411. The next prime is 289793419. The reversal of 289793412 is 214397982.

It can be written as a sum of positive squares in 2 ways, for example, as 125081856 + 164711556 = 11184^2 + 12834^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (289793411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96693 + ... + 99644.

It is an arithmetic number, because the mean of its divisors is an integer number (20844551).

Almost surely, 2^289793412 is an apocalyptic number.

It is an amenable number.

289793412 is an abundant number, since it is smaller than the sum of its proper divisors (460610424).

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

289793412 is a wasteful number, since it uses less digits than its factorization.

289793412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196388 (or 196383 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 289793412 is about 17023.3196527587. The cubic root of 289793412 is about 661.7533818493.

The spelling of 289793412 in words is "two hundred eighty-nine million, seven hundred ninety-three thousand, four hundred twelve".