1085633178 has 64 divisors (see below), whose sum is σ = 2548627200. Its totient is φ = 301824000.

The previous prime is 1085633173. The next prime is 1085633201. The reversal of 1085633178 is 8713365801.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1085633173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1034398 + ... + 1035446.

It is an arithmetic number, because the mean of its divisors is an integer number (39822300).

Almost surely, 2^1085633178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085633178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274313600).

1085633178 is an abundant number, since it is smaller than the sum of its proper divisors (1462994022).

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

1085633178 is a wasteful number, since it uses less digits than its factorization.

1085633178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1085633178 is about 32948.9480560457. The cubic root of 1085633178 is about 1027.7662901671.

Adding to 1085633178 its reverse (8713365801), we get a palindrome (9798998979).

The spelling of 1085633178 in words is "one billion, eighty-five million, six hundred thirty-three thousand, one hundred seventy-eight".