1082865540 has 48 divisors (see below), whose sum is σ = 3042785088. Its totient is φ = 287739264.

The previous prime is 1082865533. The next prime is 1082865547. The reversal of 1082865540 is 455682801.

It is an interprime number because it is at equal distance from previous prime (1082865533) and next prime (1082865547).

It is not an unprimeable number, because it can be changed into a prime (1082865547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14907 + ... + 48866.

It is an arithmetic number, because the mean of its divisors is an integer number (63391356).

Almost surely, 2^1082865540 is an apocalyptic number.

1082865540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1082865540 is an abundant number, since it is smaller than the sum of its proper divisors (1959919548).

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

1082865540 is a wasteful number, since it uses less digits than its factorization.

1082865540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64068 (or 64066 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1082865540 is about 32906.9223720481. The cubic root of 1082865540 is about 1026.8921748875.

The spelling of 1082865540 in words is "one billion, eighty-two million, eight hundred sixty-five thousand, five hundred forty".