89018380 has 96 divisors (see below), whose sum is σ = 213373440. Its totient is φ = 30912000.

The previous prime is 89018359. The next prime is 89018387. The reversal of 89018380 is 8381098.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (89018387) 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, 640351 + ... + 640489.

It is an arithmetic number, because the mean of its divisors is an integer number (2222640).

Almost surely, 2^89018380 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 89018380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106686720).

89018380 is an abundant number, since it is smaller than the sum of its proper divisors (124355060).

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

89018380 is a wasteful number, since it uses less digits than its factorization.

89018380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 89018380 is about 9434.9552198195. The cubic root of 89018380 is about 446.5052422800.

It can be divided in two parts, 89018 and 380, that added together give a palindrome (89398).

The spelling of 89018380 in words is "eighty-nine million, eighteen thousand, three hundred eighty".