85942340 has 24 divisors (see below), whose sum is σ = 196886592. Its totient is φ = 31251680.

The previous prime is 85942333. The next prime is 85942349. The reversal of 85942340 is 4324958.

It is a self number, because there is not a number n which added to its sum of digits gives 85942340.

It is not an unprimeable number, because it can be changed into a prime (85942349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195104 + ... + 195543.

It is an arithmetic number, because the mean of its divisors is an integer number (8203608).

Almost surely, 2^85942340 is an apocalyptic number.

It is an amenable number.

85942340 is an abundant number, since it is smaller than the sum of its proper divisors (110944252).

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

85942340 is a wasteful number, since it uses less digits than its factorization.

85942340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390667 (or 390665 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 85942340 is about 9270.5091553808. The cubic root of 85942340 is about 441.3018263110.

The spelling of 85942340 in words is "eighty-five million, nine hundred forty-two thousand, three hundred forty".