1383885018 has 24 divisors (see below), whose sum is σ = 2999295156. Its totient is φ = 461160000.

The previous prime is 1383884993. The next prime is 1383885023. The reversal of 1383885018 is 8105883831.

It is a happy number.

1383885018 is a `hidden beast` number, since 138 + 3 + 8 + 8 + 501 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 932874849 + 451010169 = 30543^2 + 21237^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66468 + ... + 84768.

Almost surely, 2^1383885018 is an apocalyptic number.

1383885018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1383885018 is an abundant number, since it is smaller than the sum of its proper divisors (1615410138).

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

1383885018 is a wasteful number, since it uses less digits than its factorization.

1383885018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22510 (or 22507 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 1383885018 is about 37200.6050757242. The cubic root of 1383885018 is about 1114.3800686937.

The spelling of 1383885018 in words is "one billion, three hundred eighty-three million, eight hundred eighty-five thousand, eighteen".