99998380 has 24 divisors (see below), whose sum is σ = 217239120. Its totient is φ = 38619840.

The previous prime is 99998377. The next prime is 99998413. The reversal of 99998380 is 8389999.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85626 + ... + 86785.

It is an arithmetic number, because the mean of its divisors is an integer number (9051630).

Almost surely, 2^99998380 is an apocalyptic number.

It is an amenable number.

99998380 is an abundant number, since it is smaller than the sum of its proper divisors (117240740).

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

99998380 is a wasteful number, since it uses less digits than its factorization.

99998380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172449 (or 172447 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 99998380 is about 9999.9189996719. The cubic root of 99998380 is about 464.1563768898.

The spelling of 99998380 in words is "ninety-nine million, nine hundred ninety-eight thousand, three hundred eighty".