382230921 has 4 divisors (see below), whose sum is σ = 509641232. Its totient is φ = 254820612.

The previous prime is 382230917. The next prime is 382230929. The reversal of 382230921 is 129032283.

It is a happy number.

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 not a de Polignac number, because 382230921 - 2² = 382230917 is a prime.

It is a super-2 number, since 2×382230921² = 292200953937016482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382230929) 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, 63705151 + ... + 63705156.

It is an arithmetic number, because the mean of its divisors is an integer number (127410308).

Almost surely, 2^382230921 is an apocalyptic number.

It is an amenable number.

382230921 is a deficient number, since it is larger than the sum of its proper divisors (127410311).

382230921 is a wasteful number, since it uses less digits than its factorization.

382230921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127410310.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 382230921 is about 19550.7268662830. The cubic root of 382230921 is about 725.7303277128.

It can be divided in two parts, 3822 and 30921, that added together give a palindrome (34743).

The spelling of 382230921 in words is "three hundred eighty-two million, two hundred thirty thousand, nine hundred twenty-one".