381848473 has 16 divisors (see below), whose sum is σ = 401497360. Its totient is φ = 362797056.

The previous prime is 381848447. The next prime is 381848479. The reversal of 381848473 is 374848183.

It can be written as a sum of positive squares in 8 ways, for example, as 168922009 + 212926464 = 12997^2 + 14592^2 .

It is a 4-Lehmer number, since φ(381848473) divides (381848473-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 381848473 - 2²⁵ = 348294041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381848479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293761 + ... + 295057.

It is an arithmetic number, because the mean of its divisors is an integer number (25093585).

Almost surely, 2^381848473 is an apocalyptic number.

It is an amenable number.

381848473 is a deficient number, since it is larger than the sum of its proper divisors (19648887).

381848473 is a wasteful number, since it uses less digits than its factorization.

381848473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516.

The product of its digits is 516096, while the sum is 46.

The square root of 381848473 is about 19540.9435033214. The cubic root of 381848473 is about 725.4881994432.

The spelling of 381848473 in words is "three hundred eighty-one million, eight hundred forty-eight thousand, four hundred seventy-three".