268422493 has 4 divisors (see below), whose sum is σ = 269922240. Its totient is φ = 266922748.

The previous prime is 268422461. The next prime is 268422551. The reversal of 268422493 is 394224862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268422493 - 2⁵ = 268422461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268422403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749605 + ... + 749962.

It is an arithmetic number, because the mean of its divisors is an integer number (67480560).

Almost surely, 2^268422493 is an apocalyptic number.

It is an amenable number.

268422493 is a deficient number, since it is larger than the sum of its proper divisors (1499747).

268422493 is a wasteful number, since it uses less digits than its factorization.

268422493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499746.

The product of its digits is 165888, while the sum is 40.

The square root of 268422493 is about 16383.6043958587. The cubic root of 268422493 is about 645.0691935464.

It can be divided in two parts, 268422 and 493, that multiplied together give a triangular number (132332046 = T₁₆₂₆₈).

The spelling of 268422493 in words is "two hundred sixty-eight million, four hundred twenty-two thousand, four hundred ninety-three".