332438981 has 18 divisors (see below), whose sum is σ = 393582150. Its totient is φ = 279974352.

The previous prime is 332438971. The next prime is 332438999. The reversal of 332438981 is 189834233.

It can be written as a sum of positive squares in only one way, i.e., 315382081 + 17056900 = 17759^2 + 4130^2 .

It is not a de Polignac number, because 332438981 - 2¹⁰ = 332437957 is a prime.

It is a super-2 number, since 2×332438981² = 221031352176636722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332438971) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 169595 + ... + 171543.

It is an arithmetic number, because the mean of its divisors is an integer number (21865675).

Almost surely, 2^332438981 is an apocalyptic number.

It is an amenable number.

332438981 is a deficient number, since it is larger than the sum of its proper divisors (61143169).

332438981 is an equidigital number, since it uses as much as digits as its factorization.

332438981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081 (or 2015 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 332438981 is about 18232.9092851360. The cubic root of 332438981 is about 692.7406096527.

It can be divided in two parts, 33243 and 8981, that added together give a palindrome (42224).

The spelling of 332438981 in words is "three hundred thirty-two million, four hundred thirty-eight thousand, nine hundred eighty-one".