1338608998 has 8 divisors (see below), whose sum is σ = 2010655008. Its totient is φ = 668390664.

The previous prime is 1338608989. The next prime is 1338609001. The reversal of 1338608998 is 8998068331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 455086 + ... + 458017.

It is an arithmetic number, because the mean of its divisors is an integer number (251331876).

Almost surely, 2^1338608998 is an apocalyptic number.

1338608998 is a deficient number, since it is larger than the sum of its proper divisors (672046010).

1338608998 is an equidigital number, since it uses as much as digits as its factorization.

1338608998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913838.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The square root of 1338608998 is about 36587.0058627377. The cubic root of 1338608998 is about 1102.0921609611.

The spelling of 1338608998 in words is "one billion, three hundred thirty-eight million, six hundred eight thousand, nine hundred ninety-eight".