381895433 has 4 divisors (see below), whose sum is σ = 384182400. Its totient is φ = 379608468.

The previous prime is 381895399. The next prime is 381895447. The reversal of 381895433 is 334598183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334598183 = 521 ⋅642223.

It is a cyclic number.

It is not a de Polignac number, because 381895433 - 2⁸ = 381895177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381895453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143233 + ... + 1143566.

It is an arithmetic number, because the mean of its divisors is an integer number (96045600).

Almost surely, 2^381895433 is an apocalyptic number.

It is an amenable number.

381895433 is a deficient number, since it is larger than the sum of its proper divisors (2286967).

381895433 is a wasteful number, since it uses less digits than its factorization.

381895433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286966.

The product of its digits is 311040, while the sum is 44.

The square root of 381895433 is about 19542.1450460281. The cubic root of 381895433 is about 725.5179385777.

The spelling of 381895433 in words is "three hundred eighty-one million, eight hundred ninety-five thousand, four hundred thirty-three".