332340021 has 36 divisors (see below), whose sum is σ = 550433988. Its totient is φ = 192471552.

The previous prime is 332340013. The next prime is 332340023. The reversal of 332340021 is 120043233.

It can be written as a sum of positive squares in 6 ways, for example, as 45037521 + 287302500 = 6711^2 + 16950^2 .

It is not a de Polignac number, because 332340021 - 2³ = 332340013 is a prime.

It is a super-2 number, since 2×332340021² = 220899779116560882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 332339976 and 332340003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332340023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19431 + ... + 32283.

It is an arithmetic number, because the mean of its divisors is an integer number (15289833).

Almost surely, 2^332340021 is an apocalyptic number.

It is an amenable number.

332340021 is a deficient number, since it is larger than the sum of its proper divisors (218093967).

332340021 is a wasteful number, since it uses less digits than its factorization.

332340021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12902 (or 12886 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 332340021 is about 18230.1953088825. The cubic root of 332340021 is about 692.6718647922.

Adding to 332340021 its reverse (120043233), we get a palindrome (452383254).

The spelling of 332340021 in words is "three hundred thirty-two million, three hundred forty thousand, twenty-one".