381635004 has 24 divisors (see below), whose sum is σ = 890800848. Its totient is φ = 127166080.

The previous prime is 381635003. The next prime is 381635027. The reversal of 381635004 is 400536183.

381635004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381635003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55264 + ... + 61784.

It is an arithmetic number, because the mean of its divisors is an integer number (37116702).

Almost surely, 2^381635004 is an apocalyptic number.

It is an amenable number.

381635004 is an abundant number, since it is smaller than the sum of its proper divisors (509165844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381635004 is a wasteful number, since it uses less digits than its factorization.

381635004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11405 (or 11403 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 381635004 is about 19535.4806442022. The cubic root of 381635004 is about 725.3529816628.

The spelling of 381635004 in words is "three hundred eighty-one million, six hundred thirty-five thousand, four".