383866249 has 16 divisors (see below), whose sum is σ = 428537088. Its totient is φ = 341586432.

The previous prime is 383866247. The next prime is 383866267. The reversal of 383866249 is 942668383.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 383866249 - 2¹ = 383866247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383866247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36249 + ... + 45625.

It is an arithmetic number, because the mean of its divisors is an integer number (26783568).

Almost surely, 2^383866249 is an apocalyptic number.

It is an amenable number.

383866249 is a deficient number, since it is larger than the sum of its proper divisors (44670839).

383866249 is a wasteful number, since it uses less digits than its factorization.

383866249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504.

The product of its digits is 1492992, while the sum is 49.

The square root of 383866249 is about 19592.5049189735. The cubic root of 383866249 is about 726.7638378551.

The spelling of 383866249 in words is "three hundred eighty-three million, eight hundred sixty-six thousand, two hundred forty-nine".