85385340 has 72 divisors (see below), whose sum is σ = 268610160. Its totient is φ = 22768128.

The previous prime is 85385303. The next prime is 85385347. The reversal of 85385340 is 4358358.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 85385295 and 85385304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85385347) 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 23 ways as a sum of consecutive naturals, for example, 3925 + ... + 13644.

Almost surely, 2^85385340 is an apocalyptic number.

It is an amenable number.

85385340 is an abundant number, since it is smaller than the sum of its proper divisors (183224820).

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

85385340 is a wasteful number, since it uses less digits than its factorization.

85385340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17593 (or 17579 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 85385340 is about 9240.4188216769. The cubic root of 85385340 is about 440.3463870172.

The spelling of 85385340 in words is "eighty-five million, three hundred eighty-five thousand, three hundred forty".