1087642080 has 480 divisors, whose sum is σ = 4625026560. Its totient is φ = 235146240.

The previous prime is 1087642079. The next prime is 1087642091. The reversal of 1087642080 is 802467801.

1087642080 is a `hidden beast` number, since 1 + 0 + 8 + 7 + 642 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 1723365 + ... + 1723995.

It is an arithmetic number, because the mean of its divisors is an integer number (9635472).

Almost surely, 2^1087642080 is an apocalyptic number.

1087642080 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 1087642080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2312513280).

1087642080 is an abundant number, since it is smaller than the sum of its proper divisors (3537384480).

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

1087642080 is a wasteful number, since it uses less digits than its factorization.

1087642080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1087642080 is about 32979.4190367265. The cubic root of 1087642080 is about 1028.3998404246.

The spelling of 1087642080 in words is "one billion, eighty-seven million, six hundred forty-two thousand, eighty".