268429405 has 8 divisors (see below), whose sum is σ = 341063352. Its totient is φ = 202111488.

The previous prime is 268429379. The next prime is 268429411. The reversal of 268429405 is 504924862.

It can be written as a sum of positive squares in 4 ways, for example, as 63968004 + 204461401 = 7998^2 + 14299^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 268429405 - 2⁵ = 268429373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578912 + ... + 1579081.

It is an arithmetic number, because the mean of its divisors is an integer number (42632919).

Almost surely, 2^268429405 is an apocalyptic number.

It is an amenable number.

268429405 is a deficient number, since it is larger than the sum of its proper divisors (72633947).

268429405 is a wasteful number, since it uses less digits than its factorization.

268429405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158015.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 268429405 is about 16383.8153370941. The cubic root of 268429405 is about 645.0747304395.

The spelling of 268429405 in words is "two hundred sixty-eight million, four hundred twenty-nine thousand, four hundred five".