381105436 has 12 divisors (see below), whose sum is σ = 667235800. Its totient is φ = 190466640.

The previous prime is 381105409. The next prime is 381105437. The reversal of 381105436 is 634501183.

It is a junction number, because it is equal to n+sod(n) for n = 381105398 and 381105407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381105437) 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, 10986 + ... + 29713.

Almost surely, 2^381105436 is an apocalyptic number.

It is an amenable number.

381105436 is a deficient number, since it is larger than the sum of its proper divisors (286130364).

381105436 is a wasteful number, since it uses less digits than its factorization.

381105436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43044 (or 43042 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 381105436 is about 19521.9219340720. The cubic root of 381105436 is about 725.0173192850.

The spelling of 381105436 in words is "three hundred eighty-one million, one hundred five thousand, four hundred thirty-six".