1338579894 has 8 divisors (see below), whose sum is σ = 2677159800. Its totient is φ = 446193296.

The previous prime is 1338579857. The next prime is 1338579899. The reversal of 1338579894 is 4989758331.

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

1338579894 is an admirable number.

It is a super-2 number, since 2×1338579894² = 3583592265242102472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338579899) 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, 111548319 + ... + 111548330.

It is an arithmetic number, because the mean of its divisors is an integer number (334644975).

Almost surely, 2^1338579894 is an apocalyptic number.

1338579894 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.

1338579894 is a wasteful number, since it uses less digits than its factorization.

1338579894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223096654.

The product of its digits is 6531840, while the sum is 57.

The square root of 1338579894 is about 36586.6081237384. The cubic root of 1338579894 is about 1102.0841736840.

The spelling of 1338579894 in words is "one billion, three hundred thirty-eight million, five hundred seventy-nine thousand, eight hundred ninety-four".