98311440 has 160 divisors (see below), whose sum is σ = 318479616. Its totient is φ = 25067520.

The previous prime is 98311427. The next prime is 98311487. The reversal of 98311440 is 4411389.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 98311398 and 98311407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 954429 + ... + 954531.

Almost surely, 2^98311440 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 98311440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159239808).

98311440 is an abundant number, since it is smaller than the sum of its proper divisors (220168176).

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

98311440 is a wasteful number, since it uses less digits than its factorization.

98311440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 98311440 is about 9915.2125544539. The cubic root of 98311440 is about 461.5315053652.

The spelling of 98311440 in words is "ninety-eight million, three hundred eleven thousand, four hundred forty".