383389457 has 8 divisors (see below), whose sum is σ = 442845792. Its totient is φ = 328033600.

The previous prime is 383389427. The next prime is 383389459. The reversal of 383389457 is 754983383.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 383389457 - 2¹⁰ = 383388433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383389459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024919 + ... + 1025292.

It is an arithmetic number, because the mean of its divisors is an integer number (55355724).

Almost surely, 2^383389457 is an apocalyptic number.

It is an amenable number.

383389457 is a deficient number, since it is larger than the sum of its proper divisors (59456335).

383389457 is a wasteful number, since it uses less digits than its factorization.

383389457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050239.

The product of its digits is 2177280, while the sum is 50.

The square root of 383389457 is about 19580.3334241274. Note that the first 3 decimals coincide. The cubic root of 383389457 is about 726.4628139524.

The spelling of 383389457 in words is "three hundred eighty-three million, three hundred eighty-nine thousand, four hundred fifty-seven".