85057340 has 12 divisors (see below), whose sum is σ = 178620456. Its totient is φ = 34022928.

The previous prime is 85057333. The next prime is 85057351. The reversal of 85057340 is 4375058.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 85057297 and 85057306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126414 + ... + 2126453.

It is an arithmetic number, because the mean of its divisors is an integer number (14885038).

Almost surely, 2^85057340 is an apocalyptic number.

It is an amenable number.

85057340 is an abundant number, since it is smaller than the sum of its proper divisors (93563116).

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

85057340 is a wasteful number, since it uses less digits than its factorization.

85057340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252876 (or 4252874 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 85057340 is about 9222.6536311411. The cubic root of 85057340 is about 439.7818133113.

The spelling of 85057340 in words is "eighty-five million, fifty-seven thousand, three hundred forty".