381804075 has 36 divisors (see below), whose sum is σ = 684961368. Its totient is φ = 203299200.

The previous prime is 381804047. The next prime is 381804079. The reversal of 381804075 is 570408183.

It is not a de Polignac number, because 381804075 - 2⁵ = 381804043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381804079) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 209920 + ... + 211730.

Almost surely, 2^381804075 is an apocalyptic number.

381804075 is a deficient number, since it is larger than the sum of its proper divisors (303157293).

381804075 is a wasteful number, since it uses less digits than its factorization.

381804075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2756 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 381804075 is about 19539.8074453153. The cubic root of 381804075 is about 725.4600805463.

The spelling of 381804075 in words is "three hundred eighty-one million, eight hundred four thousand, seventy-five".