289491038208 has 208 divisors, whose sum is σ = 902792361600. Its totient is φ = 91417559040.

The previous prime is 289491038201. The next prime is 289491038237. The reversal of 289491038208 is 802830194982.

It is a super-2 number, since 2×289491038208² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (289491038201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2032363 + ... + 2170133.

Almost surely, 2^289491038208 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 289491038208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451396180800).

289491038208 is an abundant number, since it is smaller than the sum of its proper divisors (613301323392).

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

289491038208 is a wasteful number, since it uses less digits than its factorization.

289491038208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137823 (or 137795 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 289491038208 in words is "two hundred eighty-nine billion, four hundred ninety-one million, thirty-eight thousand, two hundred eight".