1091726484 has 24 divisors (see below), whose sum is σ = 2606604000. Its totient is φ = 355445664.

The previous prime is 1091726483. The next prime is 1091726509. The reversal of 1091726484 is 4846271901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091726483) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1057359 + ... + 1058390.

It is an arithmetic number, because the mean of its divisors is an integer number (108608500).

Almost surely, 2^1091726484 is an apocalyptic number.

It is an amenable number.

1091726484 is an abundant number, since it is smaller than the sum of its proper divisors (1514877516).

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

1091726484 is a wasteful number, since it uses less digits than its factorization.

1091726484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115799 (or 2115797 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1091726484 is about 33041.2845391943. The cubic root of 1091726484 is about 1029.6855432439.

It can be divided in two parts, 10917 and 26484, that added together give a triangular number (37401 = T₂₇₃).

The spelling of 1091726484 in words is "one billion, ninety-one million, seven hundred twenty-six thousand, four hundred eighty-four".