1085493258 has 64 divisors (see below), whose sum is σ = 2520460800. Its totient is φ = 345844800.

The previous prime is 1085493239. The next prime is 1085493263. The reversal of 1085493258 is 8523945801.

1085493258 is a `hidden beast` number, since 108 + 5 + 493 + 2 + 58 = 666.

It is a super-2 number, since 2×1085493258² = 2356591226326909128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154735 + ... + 161597.

It is an arithmetic number, because the mean of its divisors is an integer number (39382200).

Almost surely, 2^1085493258 is an apocalyptic number.

1085493258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085493258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260230400).

1085493258 is an abundant number, since it is smaller than the sum of its proper divisors (1434967542).

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

1085493258 is a wasteful number, since it uses less digits than its factorization.

1085493258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004 (or 6998 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 1085493258 is about 32946.8247028450. The cubic root of 1085493258 is about 1027.7221342954.

The spelling of 1085493258 in words is "one billion, eighty-five million, four hundred ninety-three thousand, two hundred fifty-eight".