98123220 has 144 divisors (see below), whose sum is σ = 337559040. Its totient is φ = 22871808.

The previous prime is 98123219. The next prime is 98123227. The reversal of 98123220 is 2232189.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98123227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43357 + ... + 45563.

It is an arithmetic number, because the mean of its divisors is an integer number (2344160).

Almost surely, 2^98123220 is an apocalyptic number.

98123220 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 98123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168779520).

98123220 is an abundant number, since it is smaller than the sum of its proper divisors (239435820).

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

98123220 is a wasteful number, since it uses less digits than its factorization.

98123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 98123220 is about 9905.7165313772. The cubic root of 98123220 is about 461.2367788750.

The spelling of 98123220 in words is "ninety-eight million, one hundred twenty-three thousand, two hundred twenty".