98664440 has 96 divisors (see below), whose sum is σ = 262245600. Its totient is φ = 33304320.

The previous prime is 98664437. The next prime is 98664469. The reversal of 98664440 is 4446689.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138806 + ... + 139514.

It is an arithmetic number, because the mean of its divisors is an integer number (2731725).

Almost surely, 2^98664440 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 98664440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131122800).

98664440 is an abundant number, since it is smaller than the sum of its proper divisors (163581160).

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

98664440 is a wasteful number, since it uses less digits than its factorization.

98664440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 98664440 is about 9932.9975334740. The cubic root of 98664440 is about 462.0832418114.

The spelling of 98664440 in words is "ninety-eight million, six hundred sixty-four thousand, four hundred forty".