1083861852 has 12 divisors (see below), whose sum is σ = 2529011016. Its totient is φ = 361287280.

The previous prime is 1083861839. The next prime is 1083861853. The reversal of 1083861852 is 2581683801.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083861853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45160899 + ... + 45160922.

It is an arithmetic number, because the mean of its divisors is an integer number (210750918).

Almost surely, 2^1083861852 is an apocalyptic number.

1083861852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1083861852 is an abundant number, since it is smaller than the sum of its proper divisors (1445149164).

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

1083861852 is a wasteful number, since it uses less digits than its factorization.

1083861852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90321828 (or 90321826 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 1083861852 is about 32922.0572261212. The cubic root of 1083861852 is about 1027.2070158790.

The spelling of 1083861852 in words is "one billion, eighty-three million, eight hundred sixty-one thousand, eight hundred fifty-two".