381103808 has 28 divisors (see below), whose sum is σ = 757531632. Its totient is φ = 190229760.

The previous prime is 381103787. The next prime is 381103817. The reversal of 381103808 is 808301183.

It is a super-2 number, since 2×381103808² = 290480224944201728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35666 + ... + 45102.

Almost surely, 2^381103808 is an apocalyptic number.

It is an amenable number.

381103808 is a deficient number, since it is larger than the sum of its proper divisors (376427824).

381103808 is an equidigital number, since it uses as much as digits as its factorization.

381103808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080 (or 10070 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 381103808 is about 19521.8802373132. The cubic root of 381103808 is about 725.0162869112.

The spelling of 381103808 in words is "three hundred eighty-one million, one hundred three thousand, eight hundred eight".