1086669540 has 144 divisors (see below), whose sum is σ = 3716254080. Its totient is φ = 263419200.

The previous prime is 1086669503. The next prime is 1086669553. The reversal of 1086669540 is 459666801.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57025 + ... + 73655.

It is an arithmetic number, because the mean of its divisors is an integer number (25807320).

Almost surely, 2^1086669540 is an apocalyptic number.

1086669540 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 1086669540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1858127040).

1086669540 is an abundant number, since it is smaller than the sum of its proper divisors (2629584540).

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

1086669540 is a wasteful number, since it uses less digits than its factorization.

1086669540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16671 (or 16652 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1086669540 is about 32964.6710889097. The cubic root of 1086669540 is about 1028.0932266182.

The spelling of 1086669540 in words is "one billion, eighty-six million, six hundred sixty-nine thousand, five hundred forty".