296128491 has 8 divisors (see below), whose sum is σ = 418063824. Its totient is φ = 185806080.

The previous prime is 296128439. The next prime is 296128499. The reversal of 296128491 is 194821692.

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

It is not a de Polignac number, because 296128491 - 2¹⁰ = 296127467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (296128499) 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, 2903170 + ... + 2903271.

It is an arithmetic number, because the mean of its divisors is an integer number (52257978).

Almost surely, 2^296128491 is an apocalyptic number.

296128491 is a deficient number, since it is larger than the sum of its proper divisors (121935333).

296128491 is a wasteful number, since it uses less digits than its factorization.

296128491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806461.

The product of its digits is 62208, while the sum is 42.

The square root of 296128491 is about 17208.3843227655. The cubic root of 296128491 is about 666.5407889281.

The spelling of 296128491 in words is "two hundred ninety-six million, one hundred twenty-eight thousand, four hundred ninety-one".