381972 has 24 divisors (see below), whose sum is σ = 901600. Its totient is φ = 125856.

The previous prime is 381949. The next prime is 381977. The reversal of 381972 is 279183.

It is a happy number.

381972 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 (381977) by changing a digit.

381972 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554 + ... + 1782.

2³⁸¹⁹⁷² is an apocalyptic number.

It is an amenable number.

381972 is an abundant number, since it is smaller than the sum of its proper divisors (519628).

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

381972 is a wasteful number, since it uses less digits than its factorization.

381972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 373 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 381972 is about 618.0388337313. The cubic root of 381972 is about 72.5566422198.

The spelling of 381972 in words is "three hundred eighty-one thousand, nine hundred seventy-two".