1085610438 has 40 divisors (see below), whose sum is σ = 2653718760. Its totient is φ = 328972320.

The previous prime is 1085610431. The next prime is 1085610439. The reversal of 1085610438 is 8340165801.

1085610438 is a `hidden beast` number, since 1 + 0 + 8 + 5 + 610 + 4 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085610431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 302823 + ... + 306386.

It is an arithmetic number, because the mean of its divisors is an integer number (66342969).

Almost surely, 2^1085610438 is an apocalyptic number.

1085610438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1085610438 is an abundant number, since it is smaller than the sum of its proper divisors (1568108322).

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

1085610438 is a wasteful number, since it uses less digits than its factorization.

1085610438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609234 (or 609225 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1085610438 is about 32948.6029749366. The cubic root of 1085610438 is about 1027.7591141494.

The spelling of 1085610438 in words is "one billion, eighty-five million, six hundred ten thousand, four hundred thirty-eight".