381386334 has 48 divisors (see below), whose sum is σ = 880219008. Its totient is φ = 107917488.

The previous prime is 381386333. The next prime is 381386351. The reversal of 381386334 is 433683183.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 381386292 and 381386301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381386333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677137 + ... + 677699.

It is an arithmetic number, because the mean of its divisors is an integer number (18337896).

Almost surely, 2^381386334 is an apocalyptic number.

381386334 is an abundant number, since it is smaller than the sum of its proper divisors (498832674).

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

381386334 is a wasteful number, since it uses less digits than its factorization.

381386334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 702 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 381386334 is about 19529.1150337131. The cubic root of 381386334 is about 725.1954028988.

The spelling of 381386334 in words is "three hundred eighty-one million, three hundred eighty-six thousand, three hundred thirty-four".