1338670158 has 16 divisors (see below), whose sum is σ = 3059817600. Its totient is φ = 382477176.

The previous prime is 1338670153. The next prime is 1338670159. The reversal of 1338670158 is 8510768331.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 31873099 = 1338670158 / (1 + 3 + 3 + 8 + 6 + 7 + 0 + 1 + 5 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338670153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15936508 + ... + 15936591.

It is an arithmetic number, because the mean of its divisors is an integer number (191238600).

Almost surely, 2^1338670158 is an apocalyptic number.

1338670158 is an abundant number, since it is smaller than the sum of its proper divisors (1721147442).

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

1338670158 is a wasteful number, since it uses less digits than its factorization.

1338670158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31873111.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1338670158 is about 36587.8416690572. The cubic root of 1338670158 is about 1102.1089452822.

The spelling of 1338670158 in words is "one billion, three hundred thirty-eight million, six hundred seventy thousand, one hundred fifty-eight".