383964449 has 4 divisors (see below), whose sum is σ = 418870320. Its totient is φ = 349058580.

The previous prime is 383964443. The next prime is 383964457. The reversal of 383964449 is 944469383.

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 a de Polignac number, because none of the positive numbers 2^k-383964449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 383964397 and 383964406.

It is not an unprimeable number, because it can be changed into a prime (383964443) 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, 17452919 + ... + 17452940.

It is an arithmetic number, because the mean of its divisors is an integer number (104717580).

Almost surely, 2^383964449 is an apocalyptic number.

It is an amenable number.

383964449 is a deficient number, since it is larger than the sum of its proper divisors (34905871).

383964449 is a wasteful number, since it uses less digits than its factorization.

383964449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34905870.

The product of its digits is 2239488, while the sum is 50.

The square root of 383964449 is about 19595.0108190835. The cubic root of 383964449 is about 726.8258057273.

The spelling of 383964449 in words is "three hundred eighty-three million, nine hundred sixty-four thousand, four hundred forty-nine".