3138383550 has 48 divisors (see below), whose sum is σ = 7876995840. Its totient is φ = 826815840.

The previous prime is 3138383543. The next prime is 3138383609. The reversal of 3138383550 is 553838313.

It is a junction number, because it is equal to n+sod(n) for n = 3138383499 and 3138383508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113590 + ... + 138489.

It is an arithmetic number, because the mean of its divisors is an integer number (164104080).

Almost surely, 2^3138383550 is an apocalyptic number.

3138383550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3138383550 is an abundant number, since it is smaller than the sum of its proper divisors (4738612290).

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

3138383550 is a wasteful number, since it uses less digits than its factorization.

3138383550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252177 (or 252172 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 3138383550 is about 56021.2776541200. The cubic root of 3138383550 is about 1464.0930293014.

The spelling of 3138383550 in words is "three billion, one hundred thirty-eight million, three hundred eighty-three thousand, five hundred fifty".