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1081080 = 2333571113

1081080 has 256 divisors, whose sum is σ = 4838400. Its totient is φ = 207360.

The previous prime is 1081079. The next prime is 1081097. The reversal of 1081080 is 801801.

Adding to 1081080 its reverse (801801), we get a palindrome (1882881).

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83154 + ... + 83166.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

1081080 is a highly composite number, because it has more divisors than any smaller number.

21081080 is an apocalyptic number.

1081080 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 1081080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

1081080 is an abundant number, since it is smaller than the sum of its proper divisors (3757320).

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

1081080 is a wasteful number, since it uses less digits than its factorization.

1081080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 1081080 is about 1039.7499699447. The cubic root of 1081080 is about 102.6327449260.

The spelling of 1081080 in words is "one million, eighty-one thousand, eighty".