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: 966004383 = 3 ⋅322001461.
It is a de Polignac number, because none of the positive numbers 2k-383400669 is a prime.
It is a Duffinian number.
It is a congruent number.
Almost surely, 2383400669 is an apocalyptic number.
It is an amenable number.
383400669 is a wasteful number, since it uses less digits than its factorization.
383400669 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127800226.
The square root of 383400669 is about 19580.6197297226. The cubic root of 383400669 is about 726.4698955431.
The spelling of 383400669 in words is "three hundred eighty-three million, four hundred thousand, six hundred sixty-nine".