1087907520 has 448 divisors, whose sum is σ = 4266224640. Its totient is φ = 229244928.

The previous prime is 1087907501. The next prime is 1087907551. The reversal of 1087907520 is 257097801.

It is a tau number, because it is divible by the number of its divisors (448).

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, 10167307 + ... + 10167413.

Almost surely, 2^1087907520 is an apocalyptic number.

1087907520 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 1087907520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133112320).

1087907520 is an abundant number, since it is smaller than the sum of its proper divisors (3178317120).

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

1087907520 is a wasteful number, since it uses less digits than its factorization.

1087907520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 1087907520 is about 32983.4431192379. The cubic root of 1087907520 is about 1028.4834942462.

The spelling of 1087907520 in words is "one billion, eighty-seven million, nine hundred seven thousand, five hundred twenty".