1381899084 has 48 divisors (see below), whose sum is σ = 3336600960. Its totient is φ = 444850560.

The previous prime is 1381899083. The next prime is 1381899119. The reversal of 1381899084 is 4809981831.

It is not an unprimeable number, because it can be changed into a prime (1381899083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30879 + ... + 60969.

It is an arithmetic number, because the mean of its divisors is an integer number (69512520).

Almost surely, 2^1381899084 is an apocalyptic number.

It is an amenable number.

1381899084 is an abundant number, since it is smaller than the sum of its proper divisors (1954701876).

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

1381899084 is a wasteful number, since it uses less digits than its factorization.

1381899084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30230 (or 30228 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 1381899084 is about 37173.9032655975. The cubic root of 1381899084 is about 1113.8467525325.

The spelling of 1381899084 in words is "one billion, three hundred eighty-one million, eight hundred ninety-nine thousand, eighty-four".