1081242756 has 60 divisors (see below), whose sum is σ = 3083554320. Its totient is φ = 327648240.

The previous prime is 1081242739. The next prime is 1081242761. The reversal of 1081242756 is 6572421801.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1081242756.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 148126 + ... + 155253.

It is an arithmetic number, because the mean of its divisors is an integer number (51392572).

Almost surely, 2^1081242756 is an apocalyptic number.

It is an amenable number.

1081242756 is an abundant number, since it is smaller than the sum of its proper divisors (2002311564).

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

1081242756 is a wasteful number, since it uses less digits than its factorization.

1081242756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303406 (or 303395 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1081242756 is about 32882.2559445060. The cubic root of 1081242756 is about 1026.3789510203.

The spelling of 1081242756 in words is "one billion, eighty-one million, two hundred forty-two thousand, seven hundred fifty-six".