381031104 has 28 divisors (see below), whose sum is σ = 1008145304. Its totient is φ = 127010304.

The previous prime is 381031103. The next prime is 381031117. The reversal of 381031104 is 401130183.

It is not an unprimeable number, because it can be changed into a prime (381031103) 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, 992077 + ... + 992460.

Almost surely, 2^381031104 is an apocalyptic number.

It is an amenable number.

381031104 is an abundant number, since it is smaller than the sum of its proper divisors (627114200).

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

381031104 is a wasteful number, since it uses less digits than its factorization.

381031104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984552 (or 1984542 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 381031104 is about 19520.0180327786. The cubic root of 381031104 is about 724.9701796692.

Adding to 381031104 its reverse (401130183), we get a palindrome (782161287).

The spelling of 381031104 in words is "three hundred eighty-one million, thirty-one thousand, one hundred four".