398842299 has 10 divisors (see below), whose sum is σ = 595801580. Its totient is φ = 265894812.

The previous prime is 398842271. The next prime is 398842303. The reversal of 398842299 is 992248893.

It is a happy number.

It is not a de Polignac number, because 398842299 - 2⁵ = 398842267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398842229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2461909 + ... + 2462070.

It is an arithmetic number, because the mean of its divisors is an integer number (59580158).

Almost surely, 2^398842299 is an apocalyptic number.

398842299 is a deficient number, since it is larger than the sum of its proper divisors (196959281).

398842299 is an equidigital number, since it uses as much as digits as its factorization.

398842299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923991 (or 4923982 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 398842299 is about 19971.0365028959. The cubic root of 398842299 is about 736.0947783534.

The spelling of 398842299 in words is "three hundred ninety-eight million, eight hundred forty-two thousand, two hundred ninety-nine".