98839440 has 200 divisors, whose sum is σ = 392504640. Its totient is φ = 22581504.

The previous prime is 98839427. The next prime is 98839457. The reversal of 98839440 is 4493889.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44271 + ... + 46449.

Almost surely, 2^98839440 is an apocalyptic number.

98839440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98839440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196252320).

98839440 is an abundant number, since it is smaller than the sum of its proper divisors (293665200).

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

98839440 is a wasteful number, since it uses less digits than its factorization.

98839440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211 (or 2196 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 98839440 is about 9941.8026534427. The cubic root of 98839440 is about 462.3562777192.

The spelling of 98839440 in words is "ninety-eight million, eight hundred thirty-nine thousand, four hundred forty".