1085872392 has 160 divisors (see below), whose sum is σ = 3348021600. Its totient is φ = 328790880.

The previous prime is 1085872391. The next prime is 1085872397. The reversal of 1085872392 is 2932785801.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1085872391) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 861859 + ... + 863117.

It is an arithmetic number, because the mean of its divisors is an integer number (20925135).

Almost surely, 2^1085872392 is an apocalyptic number.

1085872392 is a gapful number since it is divisible by the number (12) 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 1085872392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674010800).

1085872392 is an abundant number, since it is smaller than the sum of its proper divisors (2262149208).

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

1085872392 is a wasteful number, since it uses less digits than its factorization.

1085872392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1275 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1085872392 is about 32952.5779264688. The cubic root of 1085872392 is about 1027.8417723940.

The spelling of 1085872392 in words is "one billion, eighty-five million, eight hundred seventy-two thousand, three hundred ninety-two".