85420942 has 16 divisors (see below), whose sum is σ = 133957152. Its totient is φ = 40775680.

The previous prime is 85420939. The next prime is 85420943. The reversal of 85420942 is 24902458.

It is a junction number, because it is equal to n+sod(n) for n = 85420898 and 85420907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85420943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28038 + ... + 30934.

It is an arithmetic number, because the mean of its divisors is an integer number (8372322).

Almost surely, 2^85420942 is an apocalyptic number.

85420942 is a deficient number, since it is larger than the sum of its proper divisors (48536210).

85420942 is a wasteful number, since it uses less digits than its factorization.

85420942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 85420942 is about 9242.3450487417. The cubic root of 85420942 is about 440.4075803230.

The spelling of 85420942 in words is "eighty-five million, four hundred twenty thousand, nine hundred forty-two".