381049344 has 120 divisors (see below), whose sum is σ = 1184515332. Its totient is φ = 117227520.

The previous prime is 381049343. The next prime is 381049369. The reversal of 381049344 is 443940183.

It can be written as a sum of positive squares in 2 ways, for example, as 341510400 + 39538944 = 18480^2 + 6288^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 381049299 and 381049308.

It is not an unprimeable number, because it can be changed into a prime (381049343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56724 + ... + 63084.

Almost surely, 2^381049344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381049344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592257666).

381049344 is an abundant number, since it is smaller than the sum of its proper divisors (803465988).

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

381049344 is a wasteful number, since it uses less digits than its factorization.

381049344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6398 (or 6379 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 381049344 is about 19520.4852398704. The cubic root of 381049344 is about 724.9817476182.

The spelling of 381049344 in words is "three hundred eighty-one million, forty-nine thousand, three hundred forty-four".