98427840 has 224 divisors, whose sum is σ = 363224064. Its totient is φ = 22118400.

The previous prime is 98427829. The next prime is 98427851. The reversal of 98427840 is 4872489.

It is an interprime number because it is at equal distance from previous prime (98427829) and next prime (98427851).

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 98427792 and 98427801.

It is a congruent number.

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, 651765 + ... + 651915.

It is an arithmetic number, because the mean of its divisors is an integer number (1621536).

Almost surely, 2^98427840 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 98427840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181612032).

98427840 is an abundant number, since it is smaller than the sum of its proper divisors (264796224).

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

98427840 is a wasteful number, since it uses less digits than its factorization.

98427840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 98427840 is about 9921.0805863071. The cubic root of 98427840 is about 461.7135834595.

The spelling of 98427840 in words is "ninety-eight million, four hundred twenty-seven thousand, eight hundred forty".