381236272 has 20 divisors (see below), whose sum is σ = 739662480. Its totient is φ = 190355648.

The previous prime is 381236267. The next prime is 381236333. The reversal of 381236272 is 272632183.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4147 + ... + 27922.

It is an arithmetic number, because the mean of its divisors is an integer number (36983124).

Almost surely, 2^381236272 is an apocalyptic number.

It is an amenable number.

381236272 is a deficient number, since it is larger than the sum of its proper divisors (358426208).

381236272 is a wasteful number, since it uses less digits than its factorization.

381236272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32820 (or 32814 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 381236272 is about 19525.2726485445. The cubic root of 381236272 is about 725.1002775287.

The spelling of 381236272 in words is "three hundred eighty-one million, two hundred thirty-six thousand, two hundred seventy-two".