1083951220 has 48 divisors (see below), whose sum is σ = 2492534016. Its totient is φ = 392688000.

The previous prime is 1083951217. The next prime is 1083951227. The reversal of 1083951220 is 221593801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083951227) 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 15 ways as a sum of consecutive naturals, for example, 50530 + ... + 68710.

It is an arithmetic number, because the mean of its divisors is an integer number (51927792).

Almost surely, 2^1083951220 is an apocalyptic number.

1083951220 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 1083951220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246267008).

1083951220 is an abundant number, since it is smaller than the sum of its proper divisors (1408582796).

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

1083951220 is a wasteful number, since it uses less digits than its factorization.

1083951220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18472 (or 18470 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1083951220 is about 32923.4144644810. The cubic root of 1083951220 is about 1027.2352473101.

The spelling of 1083951220 in words is "one billion, eighty-three million, nine hundred fifty-one thousand, two hundred twenty".