381622461 has 8 divisors (see below), whose sum is σ = 555087264. Its totient is φ = 231286320.

The previous prime is 381622459. The next prime is 381622481. The reversal of 381622461 is 164226183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 381622461 - 2¹ = 381622459 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 11564317 = 381622461 / (3 + 8 + 1 + 6 + 2 + 2 + 4 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381622411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5782126 + ... + 5782191.

It is an arithmetic number, because the mean of its divisors is an integer number (69385908).

Almost surely, 2^381622461 is an apocalyptic number.

It is an amenable number.

381622461 is a deficient number, since it is larger than the sum of its proper divisors (173464803).

381622461 is a wasteful number, since it uses less digits than its factorization.

381622461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11564331.

The product of its digits is 13824, while the sum is 33.

The square root of 381622461 is about 19535.1596103027. The cubic root of 381622461 is about 725.3450349755.

The spelling of 381622461 in words is "three hundred eighty-one million, six hundred twenty-two thousand, four hundred sixty-one".