383900469 has 4 divisors (see below), whose sum is σ = 511867296. Its totient is φ = 255933644.

The previous prime is 383900459. The next prime is 383900471. The reversal of 383900469 is 964009383.

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: 964009383 = 3 ⋅321336461.

It is a cyclic number.

It is not a de Polignac number, because 383900469 - 2¹⁹ = 383376181 is a prime.

It is a super-2 number, since 2×383900469² = 294759140196839922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 383900469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383900459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63983409 + ... + 63983414.

It is an arithmetic number, because the mean of its divisors is an integer number (127966824).

Almost surely, 2^383900469 is an apocalyptic number.

It is an amenable number.

383900469 is a deficient number, since it is larger than the sum of its proper divisors (127966827).

383900469 is a wasteful number, since it uses less digits than its factorization.

383900469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127966826.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 383900469 is about 19593.3781926446. The cubic root of 383900469 is about 726.7854331544.

The spelling of 383900469 in words is "three hundred eighty-three million, nine hundred thousand, four hundred sixty-nine".