1087035840 has 168 divisors, whose sum is σ = 4078973808. Its totient is φ = 263516160.

The previous prime is 1087035827. The next prime is 1087035841. The reversal of 1087035840 is 485307801.

1087035840 is a `hidden beast` number, since 1 + 0 + 8 + 70 + 3 + 584 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1087035795 and 1087035804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087035841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14524 + ... + 48836.

It is an arithmetic number, because the mean of its divisors is an integer number (24279606).

Almost surely, 2^1087035840 is an apocalyptic number.

1087035840 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 1087035840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039486904).

1087035840 is an abundant number, since it is smaller than the sum of its proper divisors (2991937968).

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

1087035840 is a wasteful number, since it uses less digits than its factorization.

1087035840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34347 (or 34334 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1087035840 is about 32970.2265688302. The cubic root of 1087035840 is about 1028.2087319087.

The spelling of 1087035840 in words is "one billion, eighty-seven million, thirty-five thousand, eight hundred forty".