1338847620 has 96 divisors (see below), whose sum is σ = 4189401216. Its totient is φ = 316646400.

The previous prime is 1338847619. The next prime is 1338847621. The reversal of 1338847620 is 267488331.

It is an interprime number because it is at equal distance from previous prime (1338847619) and next prime (1338847621).

It is not an unprimeable number, because it can be changed into a prime (1338847621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2322 + ... + 51798.

It is an arithmetic number, because the mean of its divisors is an integer number (43639596).

Almost surely, 2^1338847620 is an apocalyptic number.

1338847620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1338847620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2094700608).

1338847620 is an abundant number, since it is smaller than the sum of its proper divisors (2850553596).

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

1338847620 is a wasteful number, since it uses less digits than its factorization.

1338847620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49541 (or 49539 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 1338847620 is about 36590.2667385741. The cubic root of 1338847620 is about 1102.1576438145.

The spelling of 1338847620 in words is "one billion, three hundred thirty-eight million, eight hundred forty-seven thousand, six hundred twenty".