381350033 has 4 divisors (see below), whose sum is σ = 384914160. Its totient is φ = 377785908.

The previous prime is 381349987. The next prime is 381350063. The reversal of 381350033 is 330053183.

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.

It is a cyclic number.

It is not a de Polignac number, because 381350033 - 2²² = 377155729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381349984 and 381350011.

It is not an unprimeable number, because it can be changed into a prime (381350063) 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, 1781903 + ... + 1782116.

It is an arithmetic number, because the mean of its divisors is an integer number (96228540).

Almost surely, 2^381350033 is an apocalyptic number.

It is an amenable number.

381350033 is a deficient number, since it is larger than the sum of its proper divisors (3564127).

381350033 is a wasteful number, since it uses less digits than its factorization.

381350033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564126.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 381350033 is about 19528.1856044027. The cubic root of 381350033 is about 725.1723937248.

The spelling of 381350033 in words is "three hundred eighty-one million, three hundred fifty thousand, thirty-three".