1381839084 has 72 divisors (see below), whose sum is σ = 3717932400. Its totient is φ = 431235072.

The previous prime is 1381839071. The next prime is 1381839097. The reversal of 1381839084 is 4809381831.

It is an interprime number because it is at equal distance from previous prime (1381839071) and next prime (1381839097).

It is a super-4 number, since 4×1381839084⁴ (a number of 38 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112267 + ... + 123965.

It is an arithmetic number, because the mean of its divisors is an integer number (51637950).

Almost surely, 2^1381839084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381839084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1858966200).

1381839084 is an abundant number, since it is smaller than the sum of its proper divisors (2336093316).

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

1381839084 is a wasteful number, since it uses less digits than its factorization.

1381839084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11919 (or 11914 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1381839084 is about 37173.0962390813. The cubic root of 1381839084 is about 1113.8306317768.

The spelling of 1381839084 in words is "one billion, three hundred eighty-one million, eight hundred thirty-nine thousand, eighty-four".