1266225774 has 32 divisors (see below), whose sum is σ = 2776726656. Its totient is φ = 381753120.

The previous prime is 1266225769. The next prime is 1266225833. The reversal of 1266225774 is 4775226621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35692 + ... + 61695.

It is an arithmetic number, because the mean of its divisors is an integer number (86772708).

Almost surely, 2^1266225774 is an apocalyptic number.

1266225774 is an abundant number, since it is smaller than the sum of its proper divisors (1510500882).

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

1266225774 is a wasteful number, since it uses less digits than its factorization.

1266225774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97600.

The product of its digits is 282240, while the sum is 42.

The square root of 1266225774 is about 35584.0662937782. The cubic root of 1266225774 is about 1081.8583044426.

The spelling of 1266225774 in words is "one billion, two hundred sixty-six million, two hundred twenty-five thousand, seven hundred seventy-four".