98311280 has 20 divisors (see below), whose sum is σ = 228573912. Its totient is φ = 39324480.

The previous prime is 98311277. The next prime is 98311309. The reversal of 98311280 is 8211389.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 614366 + ... + 614525.

Almost surely, 2^98311280 is an apocalyptic number.

It is an amenable number.

98311280 is an abundant number, since it is smaller than the sum of its proper divisors (130262632).

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

98311280 is a wasteful number, since it uses less digits than its factorization.

98311280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228904 (or 1228898 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 98311280 is about 9915.2044860406. The cubic root of 98311280 is about 461.5312549872.

It can be divided in two parts, 9831 and 1280, that added together give a palindrome (11111).

The spelling of 98311280 in words is "ninety-eight million, three hundred eleven thousand, two hundred eighty".