85442418 has 16 divisors (see below), whose sum is σ = 189872160. Its totient is φ = 28480788.

The previous prime is 85442407. The next prime is 85442429. The reversal of 85442418 is 81424458.

It is an interprime number because it is at equal distance from previous prime (85442407) and next prime (85442429).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791080 + ... + 791187.

It is an arithmetic number, because the mean of its divisors is an integer number (11867010).

Almost surely, 2^85442418 is an apocalyptic number.

85442418 is an abundant number, since it is smaller than the sum of its proper divisors (104429742).

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

85442418 is a wasteful number, since it uses less digits than its factorization.

85442418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582278 (or 1582272 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 85442418 is about 9243.5068020746. The cubic root of 85442418 is about 440.4444854053. Note that the first 4 decimals are identical.

The spelling of 85442418 in words is "eighty-five million, four hundred forty-two thousand, four hundred eighteen".