1087633040 has 40 divisors (see below), whose sum is σ = 2723268408. Its totient is φ = 401587200.

The previous prime is 1087633031. The next prime is 1087633061. The reversal of 1087633040 is 403367801.

It can be written as a sum of positive squares in 4 ways, for example, as 6801664 + 1080831376 = 2608^2 + 32876^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1087632988 and 1087633006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521861 + ... + 523940.

Almost surely, 2^1087633040 is an apocalyptic number.

1087633040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087633040 is an abundant number, since it is smaller than the sum of its proper divisors (1635635368).

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

1087633040 is a wasteful number, since it uses less digits than its factorization.

1087633040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045827 (or 1045821 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1087633040 is about 32979.2819812682. The cubic root of 1087633040 is about 1028.3969912151.

The spelling of 1087633040 in words is "one billion, eighty-seven million, six hundred thirty-three thousand, forty".