381704104 has 8 divisors (see below), whose sum is σ = 715695210. Its totient is φ = 190852048.

The previous prime is 381704101. The next prime is 381704117. The reversal of 381704104 is 401407183.

It can be written as a sum of positive squares in only one way, i.e., 295771204 + 85932900 = 17198^2 + 9270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (381704101) 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 as a sum of consecutive naturals, namely, 23856499 + ... + 23856514.

Almost surely, 2^381704104 is an apocalyptic number.

It is an amenable number.

381704104 is a deficient number, since it is larger than the sum of its proper divisors (333991106).

381704104 is a wasteful number, since it uses less digits than its factorization.

381704104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47713019 (or 47713015 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 381704104 is about 19537.2491410638. The cubic root of 381704104 is about 725.3967572300.

The spelling of 381704104 in words is "three hundred eighty-one million, seven hundred four thousand, one hundred four".