1405263256 has 48 divisors (see below), whose sum is σ = 2856219840. Its totient is φ = 647611200.

The previous prime is 1405263247. The next prime is 1405263287. The reversal of 1405263256 is 6523625041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100281 + ... + 113431.

It is an arithmetic number, because the mean of its divisors is an integer number (59504580).

Almost surely, 2^1405263256 is an apocalyptic number.

It is an amenable number.

1405263256 is an abundant number, since it is smaller than the sum of its proper divisors (1450956584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1405263256 is a wasteful number, since it uses less digits than its factorization.

1405263256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232 (or 13209 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1405263256 is about 37486.8411045796. The cubic root of 1405263256 is about 1120.0890809248.

Adding to 1405263256 its reverse (6523625041), we get a palindrome (7928888297).

The spelling of 1405263256 in words is "one billion, four hundred five million, two hundred sixty-three thousand, two hundred fifty-six".