1262085728 has 12 divisors (see below), whose sum is σ = 2484731340. Its totient is φ = 631042848.

The previous prime is 1262085703. The next prime is 1262085743. The reversal of 1262085728 is 8275802621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19720058 + ... + 19720121.

It is an arithmetic number, because the mean of its divisors is an integer number (207060945).

Almost surely, 2^1262085728 is an apocalyptic number.

It is an amenable number.

1262085728 is a deficient number, since it is larger than the sum of its proper divisors (1222645612).

1262085728 is an equidigital number, since it uses as much as digits as its factorization.

1262085728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39440189 (or 39440181 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1262085728 is about 35525.8459153332. The cubic root of 1262085728 is about 1080.6779374106.

The spelling of 1262085728 in words is "one billion, two hundred sixty-two million, eighty-five thousand, seven hundred twenty-eight".