85392220 has 24 divisors (see below), whose sum is σ = 179502624. Its totient is φ = 34122816.

The previous prime is 85392199. The next prime is 85392221. The reversal of 85392220 is 2229358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85392221) 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, 30937 + ... + 33583.

It is an arithmetic number, because the mean of its divisors is an integer number (7479276).

Almost surely, 2^85392220 is an apocalyptic number.

It is an amenable number.

85392220 is an abundant number, since it is smaller than the sum of its proper divisors (94110404).

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

85392220 is a wasteful number, since it uses less digits than its factorization.

85392220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269 (or 4267 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 85392220 is about 9240.7910916761. The cubic root of 85392220 is about 440.3582138007.

The spelling of 85392220 in words is "eighty-five million, three hundred ninety-two thousand, two hundred twenty".