381038888 has 32 divisors (see below), whose sum is σ = 743040000. Its totient is φ = 182965440.

The previous prime is 381038881. The next prime is 381038891. The reversal of 381038888 is 888830183.

It is a super-3 number, since 3×381038888³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (381038881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40013 + ... + 48611.

It is an arithmetic number, because the mean of its divisors is an integer number (23220000).

Almost surely, 2^381038888 is an apocalyptic number.

It is an amenable number.

381038888 is a deficient number, since it is larger than the sum of its proper divisors (362001112).

381038888 is a wasteful number, since it uses less digits than its factorization.

381038888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825 (or 8821 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 381038888 is about 19520.2174168220. The cubic root of 381038888 is about 724.9751163873.

The spelling of 381038888 in words is "three hundred eighty-one million, thirty-eight thousand, eight hundred eighty-eight".