381108356 has 6 divisors (see below), whose sum is σ = 666939630. Its totient is φ = 190554176.

The previous prime is 381108353. The next prime is 381108373. The reversal of 381108356 is 653801183.

It can be written as a sum of positive squares in only one way, i.e., 310816900 + 70291456 = 17630^2 + 8384^2 .

It is not an unprimeable number, because it can be changed into a prime (381108353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47638541 + ... + 47638548.

It is an arithmetic number, because the mean of its divisors is an integer number (111156605).

Almost surely, 2^381108356 is an apocalyptic number.

It is an amenable number.

381108356 is a deficient number, since it is larger than the sum of its proper divisors (285831274).

381108356 is a wasteful number, since it uses less digits than its factorization.

381108356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95277093 (or 95277091 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 381108356 is about 19521.9967216471. The cubic root of 381108356 is about 725.0191709556.

The spelling of 381108356 in words is "three hundred eighty-one million, one hundred eight thousand, three hundred fifty-six".