383485638 has 8 divisors (see below), whose sum is σ = 766971288. Its totient is φ = 127828544.

The previous prime is 383485633. The next prime is 383485639. The reversal of 383485638 is 836584383.

It is a sphenic number, since it is the product of 3 distinct primes.

383485638 is an admirable number.

It is a super-2 number, since 2×383485638² = 294122469104534088, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383485631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31957131 + ... + 31957142.

It is an arithmetic number, because the mean of its divisors is an integer number (95871411).

Almost surely, 2^383485638 is an apocalyptic number.

383485638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

383485638 is a wasteful number, since it uses less digits than its factorization.

383485638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63914278.

The product of its digits is 1658880, while the sum is 48.

The square root of 383485638 is about 19582.7893314512. The cubic root of 383485638 is about 726.5235581700.

The spelling of 383485638 in words is "three hundred eighty-three million, four hundred eighty-five thousand, six hundred thirty-eight".