289020732 has 96 divisors (see below), whose sum is σ = 905501184. Its totient is φ = 69292800.

The previous prime is 289020707. The next prime is 289020733. The reversal of 289020732 is 237020982.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 289020693 and 289020702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289020733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19 + ... + 24042.

It is an arithmetic number, because the mean of its divisors is an integer number (9432304).

Almost surely, 2^289020732 is an apocalyptic number.

289020732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289020732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452750592).

289020732 is an abundant number, since it is smaller than the sum of its proper divisors (616480452).

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

289020732 is a wasteful number, since it uses less digits than its factorization.

289020732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24099 (or 24097 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 289020732 is about 17000.6097537706. The cubic root of 289020732 is about 661.1647110860.

The spelling of 289020732 in words is "two hundred eighty-nine million, twenty thousand, seven hundred thirty-two".