89520228 has 144 divisors (see below), whose sum is σ = 273960960. Its totient is φ = 25030944.

The previous prime is 89520217. The next prime is 89520253. The reversal of 89520228 is 82202598.

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

It is a junction number, because it is equal to n+sod(n) for n = 89520192 and 89520201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 401325 + ... + 401547.

Almost surely, 2^89520228 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 89520228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136980480).

89520228 is an abundant number, since it is smaller than the sum of its proper divisors (184440732).

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

89520228 is a wasteful number, since it uses less digits than its factorization.

89520228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 89520228 is about 9461.5129868325. The cubic root of 89520228 is about 447.3427397027.

The spelling of 89520228 in words is "eighty-nine million, five hundred twenty thousand, two hundred twenty-eight".