289208348 has 144 divisors (see below), whose sum is σ = 664070400. Its totient is φ = 108725760.

The previous prime is 289208341. The next prime is 289208351. The reversal of 289208348 is 843802982.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 289208299 and 289208308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289208341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3249488 + ... + 3249576.

It is an arithmetic number, because the mean of its divisors is an integer number (4611600).

Almost surely, 2^289208348 is an apocalyptic number.

It is an amenable number.

289208348 is an abundant number, since it is smaller than the sum of its proper divisors (374862052).

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

289208348 is a wasteful number, since it uses less digits than its factorization.

289208348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 289208348 is about 17006.1267783114. The cubic root of 289208348 is about 661.3077437862.

The spelling of 289208348 in words is "two hundred eighty-nine million, two hundred eight thousand, three hundred forty-eight".