383990648 has 16 divisors (see below), whose sum is σ = 721251960. Its totient is φ = 191656800.

The previous prime is 383990647. The next prime is 383990683. The reversal of 383990648 is 846099383.

It is a super-3 number, since 3×383990648³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 383990596 and 383990605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383990641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37463 + ... + 46598.

Almost surely, 2^383990648 is an apocalyptic number.

It is an amenable number.

383990648 is a deficient number, since it is larger than the sum of its proper divisors (337261312).

383990648 is a wasteful number, since it uses less digits than its factorization.

383990648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84638 (or 84634 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 383990648 is about 19595.6793196868. The cubic root of 383990648 is about 726.8423364906.

The spelling of 383990648 in words is "three hundred eighty-three million, nine hundred ninety thousand, six hundred forty-eight".