1080891210 has 128 divisors (see below), whose sum is σ = 3146895360. Its totient is φ = 232252416.

The previous prime is 1080891199. The next prime is 1080891211. The reversal of 1080891210 is 121980801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1080891211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 283074 + ... + 286866.

It is an arithmetic number, because the mean of its divisors is an integer number (24585120).

Almost surely, 2^1080891210 is an apocalyptic number.

1080891210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1080891210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573447680).

1080891210 is an abundant number, since it is smaller than the sum of its proper divisors (2066004150).

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

1080891210 is a wasteful number, since it uses less digits than its factorization.

1080891210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 1080891210 is about 32876.9099825394. The cubic root of 1080891210 is about 1026.2677029451.

The spelling of 1080891210 in words is "one billion, eighty million, eight hundred ninety-one thousand, two hundred ten".