1081742266 has 16 divisors (see below), whose sum is σ = 1874249280. Its totient is φ = 462777280.

The previous prime is 1081742261. The next prime is 1081742267. The reversal of 1081742266 is 6622471801.

It is not an unprimeable number, because it can be changed into a prime (1081742261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445806 + ... + 1446553.

It is an arithmetic number, because the mean of its divisors is an integer number (117140580).

Almost surely, 2^1081742266 is an apocalyptic number.

1081742266 is a deficient number, since it is larger than the sum of its proper divisors (792507014).

1081742266 is a wasteful number, since it uses less digits than its factorization.

1081742266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892389.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1081742266 is about 32889.8505013325. The cubic root of 1081742266 is about 1026.5369814032.

It can be divided in two parts, 1081 and 742266, that added together give a palindrome (743347).

The spelling of 1081742266 in words is "one billion, eighty-one million, seven hundred forty-two thousand, two hundred sixty-six".