85044428 has 24 divisors (see below), whose sum is σ = 170376192. Its totient is φ = 36386064.

The previous prime is 85044419. The next prime is 85044433. The reversal of 85044428 is 82444058.

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, 16901 + ... + 21347.

It is an arithmetic number, because the mean of its divisors is an integer number (7099008).

Almost surely, 2^85044428 is an apocalyptic number.

It is an amenable number.

85044428 is an abundant number, since it is smaller than the sum of its proper divisors (85331764).

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

85044428 is a wasteful number, since it uses less digits than its factorization.

85044428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141 (or 5139 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 85044428 is about 9221.9535891263. The cubic root of 85044428 is about 439.7595587156.

The spelling of 85044428 in words is "eighty-five million, forty-four thousand, four hundred twenty-eight".