296221081 has 8 divisors (see below), whose sum is σ = 325027080. Its totient is φ = 268275072.

The previous prime is 296221069. The next prime is 296221087. The reversal of 296221081 is 180122692.

It can be written as a sum of positive squares in 4 ways, for example, as 931225 + 295289856 = 965^2 + 17184^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 296221081 - 2²³ = 287832473 is a prime.

It is a super-2 number, since 2×296221081² = 175493857657617122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (296221087) 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 7 ways as a sum of consecutive naturals, for example, 214276 + ... + 215653.

It is an arithmetic number, because the mean of its divisors is an integer number (40628385).

Almost surely, 2^296221081 is an apocalyptic number.

It is an amenable number.

296221081 is a deficient number, since it is larger than the sum of its proper divisors (28805999).

296221081 is a wasteful number, since it uses less digits than its factorization.

296221081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429995.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 296221081 is about 17211.0743708811. The cubic root of 296221081 is about 666.6102504204.

It can be divided in two parts, 29622 and 1081, that added together give a palindrome (30703).

The spelling of 296221081 in words is "two hundred ninety-six million, two hundred twenty-one thousand, eighty-one".