268903019 has 24 divisors (see below), whose sum is σ = 342501600. Its totient is φ = 206616960.

The previous prime is 268903009. The next prime is 268903043. The reversal of 268903019 is 910309862.

It is not a de Polignac number, because 268903019 - 2⁴ = 268903003 is a prime.

It is a super-2 number, since 2×268903019² = 144617667254628722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268903009) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 59657 + ... + 64005.

It is an arithmetic number, because the mean of its divisors is an integer number (14270900).

Almost surely, 2^268903019 is an apocalyptic number.

268903019 is a deficient number, since it is larger than the sum of its proper divisors (73598581).

268903019 is a wasteful number, since it uses less digits than its factorization.

268903019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451 (or 4440 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 268903019 is about 16398.2626823697. The cubic root of 268903019 is about 645.4538952035.

The spelling of 268903019 in words is "two hundred sixty-eight million, nine hundred three thousand, nineteen".