89408540 has 48 divisors (see below), whose sum is σ = 202968192. Its totient is φ = 32887296.

The previous prime is 89408519. The next prime is 89408549. The reversal of 89408540 is 4580498.

It is a junction number, because it is equal to n+sod(n) for n = 89408494 and 89408503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89408549) 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, 94952 + ... + 95888.

It is an arithmetic number, because the mean of its divisors is an integer number (4228504).

Almost surely, 2^89408540 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 89408540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101484096).

89408540 is an abundant number, since it is smaller than the sum of its proper divisors (113559652).

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

89408540 is a wasteful number, since it uses less digits than its factorization.

89408540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 89408540 is about 9455.6089174627. The cubic root of 89408540 is about 447.1566230757.

The spelling of 89408540 in words is "eighty-nine million, four hundred eight thousand, five hundred forty".