381525672 has 32 divisors (see below), whose sum is σ = 1040525280. Its totient is φ = 115613760.

The previous prime is 381525647. The next prime is 381525701. The reversal of 381525672 is 276525183.

It is a self number, because there is not a number n which added to its sum of digits gives 381525672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722323 + ... + 722850.

It is an arithmetic number, because the mean of its divisors is an integer number (32516415).

Almost surely, 2^381525672 is an apocalyptic number.

It is an amenable number.

381525672 is an abundant number, since it is smaller than the sum of its proper divisors (658999608).

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

381525672 is a wasteful number, since it uses less digits than its factorization.

381525672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445193 (or 1445189 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 381525672 is about 19532.6821506930. The cubic root of 381525672 is about 725.2837079103.

The spelling of 381525672 in words is "three hundred eighty-one million, five hundred twenty-five thousand, six hundred seventy-two".