289203048 has 112 divisors (see below), whose sum is σ = 861130980. Its totient is φ = 90699264.

The previous prime is 289203029. The next prime is 289203049. The reversal of 289203048 is 840302982.

It can be written as a sum of positive squares in 2 ways, for example, as 217326564 + 71876484 = 14742^2 + 8478^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (289203049) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 97686 + ... + 100602.

Almost surely, 2^289203048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289203048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430565490).

289203048 is an abundant number, since it is smaller than the sum of its proper divisors (571927932).

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

289203048 is a wasteful number, since it uses less digits than its factorization.

289203048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 289203048 is about 17005.9709514041. The cubic root of 289203048 is about 661.3037040774.

The spelling of 289203048 in words is "two hundred eighty-nine million, two hundred three thousand, forty-eight".