381809038 has 8 divisors (see below), whose sum is σ = 616768488. Its totient is φ = 176219544.

The previous prime is 381809027. The next prime is 381809089. The reversal of 381809038 is 830908183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 7342456 + ... + 7342507.

It is an arithmetic number, because the mean of its divisors is an integer number (77096061).

Almost surely, 2^381809038 is an apocalyptic number.

381809038 is a deficient number, since it is larger than the sum of its proper divisors (234959450).

381809038 is a wasteful number, since it uses less digits than its factorization.

381809038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14684978.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 381809038 is about 19539.9344420599. The cubic root of 381809038 is about 725.4632239061.

The spelling of 381809038 in words is "three hundred eighty-one million, eight hundred nine thousand, thirty-eight".