1080636480 has 504 divisors, whose sum is σ = 4679752896. Its totient is φ = 224040960.

The previous prime is 1080636461. The next prime is 1080636503. The reversal of 1080636480 is 846360801.

It is a happy number.

1080636480 is a `hidden beast` number, since 1 + 0 + 8 + 0 + 6 + 3 + 648 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2439139 + ... + 2439581.

It is an arithmetic number, because the mean of its divisors is an integer number (9285224).

Almost surely, 2^1080636480 is an apocalyptic number.

1080636480 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 1080636480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2339876448).

1080636480 is an abundant number, since it is smaller than the sum of its proper divisors (3599116416).

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

1080636480 is a wasteful number, since it uses less digits than its factorization.

1080636480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1080636480 is about 32873.0357588100. The cubic root of 1080636480 is about 1026.1870775907.

The spelling of 1080636480 in words is "one billion, eighty million, six hundred thirty-six thousand, four hundred eighty".