382121284 has 24 divisors (see below), whose sum is σ = 693163800. Its totient is φ = 184101120.

The previous prime is 382121281. The next prime is 382121317. The reversal of 382121284 is 482121283.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16240900 + 365880384 = 4030^2 + 19128^2 .

It is not an unprimeable number, because it can be changed into a prime (382121281) 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, 59712 + ... + 65800.

It is an arithmetic number, because the mean of its divisors is an integer number (28881825).

Almost surely, 2^382121284 is an apocalyptic number.

It is an amenable number.

382121284 is a deficient number, since it is larger than the sum of its proper divisors (311042516).

382121284 is a wasteful number, since it uses less digits than its factorization.

382121284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663 (or 6661 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 382121284 is about 19547.9227540933. The cubic root of 382121284 is about 725.6609329217.

Subtracting 382121284 from its reverse (482121283), we obtain a palindrome (99999999).

The spelling of 382121284 in words is "three hundred eighty-two million, one hundred twenty-one thousand, two hundred eighty-four".