332989505 has 4 divisors (see below), whose sum is σ = 399587412. Its totient is φ = 266391600.

The previous prime is 332989429. The next prime is 332989511. The reversal of 332989505 is 505989233.

It is a Cunningham number, because it is equal to 18248²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505989233 = 79 ⋅6404927.

It can be written as a sum of positive squares in 2 ways, for example, as 119858704 + 213130801 = 10948^2 + 14599^2 .

It is not a de Polignac number, because 332989505 - 2²⁴ = 316212289 is a prime.

It is a super-2 number, since 2×332989505² = 221764020880290050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33298946 + ... + 33298955.

It is an arithmetic number, because the mean of its divisors is an integer number (99896853).

Almost surely, 2^332989505 is an apocalyptic number.

It is an amenable number.

332989505 is a deficient number, since it is larger than the sum of its proper divisors (66597907).

332989505 is an equidigital number, since it uses as much as digits as its factorization.

332989505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66597906.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 332989505 is about 18248.0000274003. Note that the first 4 decimals coincide. The cubic root of 332989505 is about 693.1227950845.

The spelling of 332989505 in words is "three hundred thirty-two million, nine hundred eighty-nine thousand, five hundred five".