1085718774 has 48 divisors (see below), whose sum is σ = 2531478528. Its totient is φ = 309527568.

The previous prime is 1085718773. The next prime is 1085718793. The reversal of 1085718774 is 4778175801.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085718773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139387 + ... + 146969.

It is an arithmetic number, because the mean of its divisors is an integer number (52739136).

Almost surely, 2^1085718774 is an apocalyptic number.

1085718774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085718774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1265739264).

1085718774 is an abundant number, since it is smaller than the sum of its proper divisors (1445759754).

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

1085718774 is a wasteful number, since it uses less digits than its factorization.

1085718774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8089 (or 8082 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 48.

The square root of 1085718774 is about 32950.2469489987. The cubic root of 1085718774 is about 1027.7933006323.

The spelling of 1085718774 in words is "one billion, eighty-five million, seven hundred eighteen thousand, seven hundred seventy-four".