381818048 has 14 divisors (see below), whose sum is σ = 757670316. Its totient is φ = 190908992.

The previous prime is 381818033. The next prime is 381818081. The reversal of 381818048 is 840818183.

It is a junction number, because it is equal to n+sod(n) for n = 381817996 and 381818014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2982890 + ... + 2983017.

Almost surely, 2^381818048 is an apocalyptic number.

It is an amenable number.

381818048 is a deficient number, since it is larger than the sum of its proper divisors (375852268).

381818048 is an equidigital number, since it uses as much as digits as its factorization.

381818048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965919 (or 5965909 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 381818048 is about 19540.1649941857. The cubic root of 381818048 is about 725.4689303995.

The spelling of 381818048 in words is "three hundred eighty-one million, eight hundred eighteen thousand, forty-eight".