85421042 has 16 divisors (see below), whose sum is σ = 147098112. Its totient is φ = 36443520.

The previous prime is 85421033. The next prime is 85421071. The reversal of 85421042 is 24012458.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10559 + ... + 16802.

It is an arithmetic number, because the mean of its divisors is an integer number (9193632).

Almost surely, 2^85421042 is an apocalyptic number.

85421042 is a deficient number, since it is larger than the sum of its proper divisors (61677070).

85421042 is a wasteful number, since it uses less digits than its factorization.

85421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27593.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 85421042 is about 9242.3504586225. The cubic root of 85421042 is about 440.4077521807.

The spelling of 85421042 in words is "eighty-five million, four hundred twenty-one thousand, forty-two".