1091062080 has 336 divisors, whose sum is σ = 4006778880. Its totient is φ = 271724544.

The previous prime is 1091062073. The next prime is 1091062087. The reversal of 1091062080 is 802601901.

It is an interprime number because it is at equal distance from previous prime (1091062073) and next prime (1091062087).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091062087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6949362 + ... + 6949518.

Almost surely, 2^1091062080 is an apocalyptic number.

1091062080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1091062080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2003389440).

1091062080 is an abundant number, since it is smaller than the sum of its proper divisors (2915716800).

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

1091062080 is a wasteful number, since it uses less digits than its factorization.

1091062080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1091062080 is about 33031.2288599743. The cubic root of 1091062080 is about 1029.4766185017.

Adding to 1091062080 its reverse (802601901), we get a palindrome (1893663981).

The spelling of 1091062080 in words is "one billion, ninety-one million, sixty-two thousand, eighty".