1087644460 has 24 divisors (see below), whose sum is σ = 2610347040. Its totient is φ = 372906624.

The previous prime is 1087644419. The next prime is 1087644463. The reversal of 1087644460 is 644467801.

It is not an unprimeable number, because it can be changed into a prime (1087644463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3884305 + ... + 3884584.

It is an arithmetic number, because the mean of its divisors is an integer number (108764460).

Almost surely, 2^1087644460 is an apocalyptic number.

1087644460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087644460 is an abundant number, since it is smaller than the sum of its proper divisors (1522702580).

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

1087644460 is a wasteful number, since it uses less digits than its factorization.

1087644460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7768905 (or 7768903 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 1087644460 is about 32979.4551198166. The cubic root of 1087644460 is about 1028.4005905457.

The spelling of 1087644460 in words is "one billion, eighty-seven million, six hundred forty-four thousand, four hundred sixty".