1086816220 has 48 divisors (see below), whose sum is σ = 2617671168. Its totient is φ = 371292480.

The previous prime is 1086816191. The next prime is 1086816253. The reversal of 1086816220 is 226186801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25905 + ... + 53335.

It is an arithmetic number, because the mean of its divisors is an integer number (54534816).

Almost surely, 2^1086816220 is an apocalyptic number.

1086816220 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 1086816220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308835584).

1086816220 is an abundant number, since it is smaller than the sum of its proper divisors (1530854948).

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

1086816220 is a wasteful number, since it uses less digits than its factorization.

1086816220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27730 (or 27728 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1086816220 is about 32966.8958198979. The cubic root of 1086816220 is about 1028.1394823026.

The spelling of 1086816220 in words is "one billion, eighty-six million, eight hundred sixteen thousand, two hundred twenty".