85224042 has 32 divisors (see below), whose sum is σ = 190123200. Its totient is φ = 28297584.

The previous prime is 85224017. The next prime is 85224047. The reversal of 85224042 is 24042258.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 85223997 and 85224015.

It is not an unprimeable number, because it can be changed into a prime (85224047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11593 + ... + 17459.

It is an arithmetic number, because the mean of its divisors is an integer number (5941350).

Almost surely, 2^85224042 is an apocalyptic number.

85224042 is an abundant number, since it is smaller than the sum of its proper divisors (104899158).

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

85224042 is a wasteful number, since it uses less digits than its factorization.

85224042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6147 (or 6141 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 85224042 is about 9231.6868447754. The cubic root of 85224042 is about 440.0689320378.

The spelling of 85224042 in words is "eighty-five million, two hundred twenty-four thousand, forty-two".