268943590 has 16 divisors (see below), whose sum is σ = 484554960. Its totient is φ = 107476000.

The previous prime is 268943581. The next prime is 268943599. The reversal of 268943590 is 95349862.

It is an interprime number because it is at equal distance from previous prime (268943581) and next prime (268943599).

It is a self number, because there is not a number n which added to its sum of digits gives 268943590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268943599) 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 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 23215.

It is an arithmetic number, because the mean of its divisors is an integer number (30284685).

Almost surely, 2^268943590 is an apocalyptic number.

268943590 is a deficient number, since it is larger than the sum of its proper divisors (215611370).

268943590 is a wasteful number, since it uses less digits than its factorization.

268943590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25367.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 268943590 is about 16399.4996874905. The cubic root of 268943590 is about 645.4863547289.

The spelling of 268943590 in words is "two hundred sixty-eight million, nine hundred forty-three thousand, five hundred ninety".