381572 has 6 divisors (see below), whose sum is σ = 667758. Its totient is φ = 190784.

The previous prime is 381569. The next prime is 381607. The reversal of 381572 is 275183.

381572 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 379456 + 2116 = 616^2 + 46^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁶ + 8⁶ + 5² + 1 + 7⁶ + 2¹⁰ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47693 + ... + 47700.

It is an arithmetic number, because the mean of its divisors is an integer number (111293).

2³⁸¹⁵⁷² is an apocalyptic number.

It is an amenable number.

381572 is a deficient number, since it is larger than the sum of its proper divisors (286186).

381572 is a wasteful number, since it uses less digits than its factorization.

381572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95397 (or 95395 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 381572 is about 617.7151447067. The cubic root of 381572 is about 72.5313063369.

The spelling of 381572 in words is "three hundred eighty-one thousand, five hundred seventy-two".