268013990 has 32 divisors (see below), whose sum is σ = 492492960. Its totient is φ = 104982784.

The previous prime is 268013989. The next prime is 268014017. The reversal of 268013990 is 99310862.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 186314 + ... + 187746.

It is an arithmetic number, because the mean of its divisors is an integer number (15390405).

Almost surely, 2^268013990 is an apocalyptic number.

268013990 is a deficient number, since it is larger than the sum of its proper divisors (224478970).

268013990 is a wasteful number, since it uses less digits than its factorization.

268013990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816.

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

The square root of 268013990 is about 16371.1328258004. The cubic root of 268013990 is about 644.7417911642.

The spelling of 268013990 in words is "two hundred sixty-eight million, thirteen thousand, nine hundred ninety".