383438481 has 4 divisors (see below), whose sum is σ = 511251312. Its totient is φ = 255625652.

The previous prime is 383438479. The next prime is 383438501. The reversal of 383438481 is 184834383.

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 383438481 - 2¹ = 383438479 is a prime.

It is a super-2 number, since 2×383438481² = 294050137423174722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (383438401) 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, 63906411 + ... + 63906416.

It is an arithmetic number, because the mean of its divisors is an integer number (127812828).

Almost surely, 2^383438481 is an apocalyptic number.

It is an amenable number.

383438481 is a deficient number, since it is larger than the sum of its proper divisors (127812831).

383438481 is a wasteful number, since it uses less digits than its factorization.

383438481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127812830.

The product of its digits is 221184, while the sum is 42.

The square root of 383438481 is about 19581.5852524764. The cubic root of 383438481 is about 726.4937768931.

The spelling of 383438481 in words is "three hundred eighty-three million, four hundred thirty-eight thousand, four hundred eighty-one".