1081286040 has 32 divisors (see below), whose sum is σ = 3243858480. Its totient is φ = 288342912.

The previous prime is 1081286027. The next prime is 1081286047. The reversal of 1081286040 is 406821801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1081285989 and 1081286007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081286047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4505239 + ... + 4505478.

Almost surely, 2^1081286040 is an apocalyptic number.

1081286040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081286040 is an abundant number, since it is smaller than the sum of its proper divisors (2162572440).

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

1081286040 is a wasteful number, since it uses less digits than its factorization.

1081286040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010731 (or 9010727 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1081286040 is about 32882.9141044403. The cubic root of 1081286040 is about 1026.3926467402.

The spelling of 1081286040 in words is "one billion, eighty-one million, two hundred eighty-six thousand, forty".