1338478298 has 8 divisors (see below), whose sum is σ = 2030276340. Its totient is φ = 661719520.

The previous prime is 1338478291. The next prime is 1338478327. The reversal of 1338478298 is 8928748331.

It can be written as a sum of positive squares in 2 ways, for example, as 1338315889 + 162409 = 36583^2 + 403^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1338478291) 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 3 ways as a sum of consecutive naturals, for example, 3759593 + ... + 3759948.

Almost surely, 2^1338478298 is an apocalyptic number.

1338478298 is a deficient number, since it is larger than the sum of its proper divisors (691798042).

1338478298 is an equidigital number, since it uses as much as digits as its factorization.

1338478298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519632.

The product of its digits is 2322432, while the sum is 53.

The square root of 1338478298 is about 36585.2196658705. The cubic root of 1338478298 is about 1102.0562908566.

The spelling of 1338478298 in words is "one billion, three hundred thirty-eight million, four hundred seventy-eight thousand, two hundred ninety-eight".