1085258208 has 24 divisors (see below), whose sum is σ = 2848803048. Its totient is φ = 361752704.

The previous prime is 1085258203. The next prime is 1085258219. The reversal of 1085258208 is 8028525801.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085258203) 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, 5652291 + ... + 5652482.

It is an arithmetic number, because the mean of its divisors is an integer number (118700127).

Almost surely, 2^1085258208 is an apocalyptic number.

It is an amenable number.

1085258208 is an abundant number, since it is smaller than the sum of its proper divisors (1763544840).

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

1085258208 is a wasteful number, since it uses less digits than its factorization.

1085258208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304786 (or 11304778 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 1085258208 is about 32943.2573981384. The cubic root of 1085258208 is about 1027.6479488122.

The spelling of 1085258208 in words is "one billion, eighty-five million, two hundred fifty-eight thousand, two hundred eight".