85168420 has 24 divisors (see below), whose sum is σ = 179028864. Its totient is φ = 34034016.

The previous prime is 85168409. The next prime is 85168427. The reversal of 85168420 is 2486158.

It is not an unprimeable number, because it can be changed into a prime (85168427) 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, 34549 + ... + 36931.

It is an arithmetic number, because the mean of its divisors is an integer number (7459536).

Almost surely, 2^85168420 is an apocalyptic number.

It is an amenable number.

85168420 is an abundant number, since it is smaller than the sum of its proper divisors (93860444).

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

85168420 is a wasteful number, since it uses less digits than its factorization.

85168420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 85168420 is about 9228.6737942133. The cubic root of 85168420 is about 439.9731732955.

The spelling of 85168420 in words is "eighty-five million, one hundred sixty-eight thousand, four hundred twenty".