1383489618 has 24 divisors (see below), whose sum is σ = 3218731632. Its totient is φ = 395282664.

The previous prime is 1383489593. The next prime is 1383489619. The reversal of 1383489618 is 8169843831.

It is a super-2 number, since 2×1383489618² = 3828087046227571848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1383489619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2352580 + ... + 2353167.

It is an arithmetic number, because the mean of its divisors is an integer number (134113818).

Almost surely, 2^1383489618 is an apocalyptic number.

1383489618 is an abundant number, since it is smaller than the sum of its proper divisors (1835242014).

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

1383489618 is a wasteful number, since it uses less digits than its factorization.

1383489618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705766 (or 4705759 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 1383489618 is about 37195.2902663765. The cubic root of 1383489618 is about 1114.2739260000.

The spelling of 1383489618 in words is "one billion, three hundred eighty-three million, four hundred eighty-nine thousand, six hundred eighteen".