381844351 has 8 divisors (see below), whose sum is σ = 436813344. Its totient is φ = 326980320.

The previous prime is 381844313. The next prime is 381844369. The reversal of 381844351 is 153448183.

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

It is a cyclic number.

It is not a de Polignac number, because 381844351 - 2²⁷ = 247626623 is a prime.

It is a super-2 number, since 2×381844351² = 291610216781222402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381844351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381844651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18280 + ... + 33133.

It is an arithmetic number, because the mean of its divisors is an integer number (54601668).

Almost surely, 2^381844351 is an apocalyptic number.

381844351 is a deficient number, since it is larger than the sum of its proper divisors (54968993).

381844351 is a wasteful number, since it uses less digits than its factorization.

381844351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52481.

The product of its digits is 46080, while the sum is 37.

The square root of 381844351 is about 19540.8380321828. The cubic root of 381844351 is about 725.4855889198.

The spelling of 381844351 in words is "three hundred eighty-one million, eight hundred forty-four thousand, three hundred fifty-one".