381044118 has 64 divisors (see below), whose sum is σ = 940972032. Its totient is φ = 100172160.

The previous prime is 381044117. The next prime is 381044123. The reversal of 381044118 is 811440183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381044117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202723 + ... + 204593.

It is an arithmetic number, because the mean of its divisors is an integer number (14702688).

Almost surely, 2^381044118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381044118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470486016).

381044118 is an abundant number, since it is smaller than the sum of its proper divisors (559927914).

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

381044118 is a wasteful number, since it uses less digits than its factorization.

381044118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 381044118 is about 19520.3513800341. The cubic root of 381044118 is about 724.9784332863.

The spelling of 381044118 in words is "three hundred eighty-one million, forty-four thousand, one hundred eighteen".