1313838428 has 24 divisors (see below), whose sum is σ = 2636253312. Its totient is φ = 561235824.

The previous prime is 1313838413. The next prime is 1313838473. The reversal of 1313838428 is 8248383131.

It is a super-2 number, since 2×1313838428² = 3452342829779022368, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 67826 + ... + 85017.

It is an arithmetic number, because the mean of its divisors is an integer number (109843888).

Almost surely, 2^1313838428 is an apocalyptic number.

It is an amenable number.

1313838428 is an abundant number, since it is smaller than the sum of its proper divisors (1322414884).

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

1313838428 is a wasteful number, since it uses less digits than its factorization.

1313838428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153161 (or 153159 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 1313838428 is about 36246.9092199597. The cubic root of 1313838428 is about 1095.2518281264.

The spelling of 1313838428 in words is "one billion, three hundred thirteen million, eight hundred thirty-eight thousand, four hundred twenty-eight".