1087042500 has 90 divisors (see below), whose sum is σ = 3433724294. Its totient is φ = 289872000.

The previous prime is 1087042493. The next prime is 1087042511. The reversal of 1087042500 is 52407801.

It can be written as a sum of positive squares in 5 ways, for example, as 550934784 + 536107716 = 23472^2 + 23154^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×1087042500² = 2363322793612500000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1657 + ... + 46656.

Almost surely, 2^1087042500 is an apocalyptic number.

1087042500 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 1087042500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716862147).

1087042500 is an abundant number, since it is smaller than the sum of its proper divisors (2346681794).

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

1087042500 is a wasteful number, since it uses less digits than its factorization.

1087042500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48343 (or 48323 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1087042500 is about 32970.3275688914. The cubic root of 1087042500 is about 1028.2108317647.

The spelling of 1087042500 in words is "one billion, eighty-seven million, forty-two thousand, five hundred".