338791998 has 8 divisors (see below), whose sum is σ = 677584008. Its totient is φ = 112930664.

The previous prime is 338791991. The next prime is 338792023. The reversal of 338791998 is 899197833.

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

338791998 is an admirable number.

It is a super-2 number, since 2×338791998² = 229560035817664008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338791991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28232661 + ... + 28232672.

It is an arithmetic number, because the mean of its divisors is an integer number (84698001).

Almost surely, 2^338791998 is an apocalyptic number.

338791998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

338791998 is a wasteful number, since it uses less digits than its factorization.

338791998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56465338.

The product of its digits is 2939328, while the sum is 57.

The square root of 338791998 is about 18406.3032138450. The cubic root of 338791998 is about 697.1256268737.

The spelling of 338791998 in words is "three hundred thirty-eight million, seven hundred ninety-one thousand, nine hundred ninety-eight".