383448431 has 4 divisors (see below), whose sum is σ = 383521872. Its totient is φ = 383374992.

The previous prime is 383448421. The next prime is 383448449. The reversal of 383448431 is 134844383.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 383448431 - 2¹⁴ = 383432047 is a prime.

It is a super-2 number, since 2×383448431² = 294065398472723522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383448421) 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, 28235 + ... + 39548.

It is an arithmetic number, because the mean of its divisors is an integer number (95880468).

Almost surely, 2^383448431 is an apocalyptic number.

383448431 is a deficient number, since it is larger than the sum of its proper divisors (73441).

383448431 is an equidigital number, since it uses as much as digits as its factorization.

383448431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73440.

The product of its digits is 110592, while the sum is 38.

The square root of 383448431 is about 19581.8393160602. The cubic root of 383448431 is about 726.5000608656.

The spelling of 383448431 in words is "three hundred eighty-three million, four hundred forty-eight thousand, four hundred thirty-one".