98406438 has 64 divisors (see below), whose sum is σ = 229340160. Its totient is φ = 27873792.

The previous prime is 98406433. The next prime is 98406439. The reversal of 98406438 is 83460489.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98406438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98406433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61533 + ... + 63111.

It is an arithmetic number, because the mean of its divisors is an integer number (3583440).

Almost surely, 2^98406438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98406438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114670080).

98406438 is an abundant number, since it is smaller than the sum of its proper divisors (130933722).

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

98406438 is a wasteful number, since it uses less digits than its factorization.

98406438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 98406438 is about 9920.0019153224. The cubic root of 98406438 is about 461.6801162669.

The spelling of 98406438 in words is "ninety-eight million, four hundred six thousand, four hundred thirty-eight".