382842121 has 4 divisors (see below), whose sum is σ = 382900500. Its totient is φ = 382783744.

The previous prime is 382842113. The next prime is 382842127. The reversal of 382842121 is 121248283.

382842121 = 13835² + 13836².

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191407225 + 191434896 = 13835^2 + 13836^2 .

It is a cyclic number.

It is not a de Polignac number, because 382842121 - 2³ = 382842113 is a prime.

It is a super-2 number, since 2×382842121² = 293136179223557282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382842127) 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, 17896 + ... + 32953.

It is an arithmetic number, because the mean of its divisors is an integer number (95725125).

Almost surely, 2^382842121 is an apocalyptic number.

382842121 is the 13836-th centered square number.

It is an amenable number.

382842121 is a deficient number, since it is larger than the sum of its proper divisors (58379).

382842121 is an equidigital number, since it uses as much as digits as its factorization.

382842121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58378.

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

The square root of 382842121 is about 19566.3517549900. The cubic root of 382842121 is about 726.1169440538.

The spelling of 382842121 in words is "three hundred eighty-two million, eight hundred forty-two thousand, one hundred twenty-one".