1405268 has 12 divisors (see below), whose sum is σ = 2481780. Its totient is φ = 696192.

The previous prime is 1405267. The next prime is 1405289. The reversal of 1405268 is 8625041.

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 1295044 = 332^2 + 1138^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405267) 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, 1103 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (206815).

2^1405268 is an apocalyptic number.

It is an amenable number.

1405268 is a deficient number, since it is larger than the sum of its proper divisors (1076512).

1405268 is a wasteful number, since it uses less digits than its factorization.

1405268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226 (or 3224 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1405268 is about 1185.4400026994. The cubic root of 1405268 is about 112.0090341352.

The spelling of 1405268 in words is "one million, four hundred five thousand, two hundred sixty-eight".