381225864 has 32 divisors (see below), whose sum is σ = 956704320. Its totient is φ = 126590016.

The previous prime is 381225863. The next prime is 381225869. The reversal of 381225864 is 468522183.

381225864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (381225863) 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, 23887 + ... + 36510.

It is an arithmetic number, because the mean of its divisors is an integer number (29897010).

Almost surely, 2^381225864 is an apocalyptic number.

It is an amenable number.

381225864 is an abundant number, since it is smaller than the sum of its proper divisors (575478456).

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

381225864 is a wasteful number, since it uses less digits than its factorization.

381225864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60669 (or 60665 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 381225864 is about 19525.0061203576. The cubic root of 381225864 is about 725.0936788978.

The spelling of 381225864 in words is "three hundred eighty-one million, two hundred twenty-five thousand, eight hundred sixty-four".