1084869220 has 24 divisors (see below), whose sum is σ = 2398132800. Its totient is φ = 411108192.

The previous prime is 1084869209. The next prime is 1084869251. The reversal of 1084869220 is 229684801.

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, 1427080 + ... + 1427839.

It is an arithmetic number, because the mean of its divisors is an integer number (99922200).

Almost surely, 2^1084869220 is an apocalyptic number.

1084869220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1084869220 is an abundant number, since it is smaller than the sum of its proper divisors (1313263580).

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

1084869220 is a wasteful number, since it uses less digits than its factorization.

1084869220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854947 (or 2854945 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1084869220 is about 32937.3529598236. The cubic root of 1084869220 is about 1027.5251545356.

The spelling of 1084869220 in words is "one billion, eighty-four million, eight hundred sixty-nine thousand, two hundred twenty".