85018444 has 24 divisors (see below), whose sum is σ = 172578560. Its totient is φ = 35891856.

The previous prime is 85018433. The next prime is 85018447. The reversal of 85018444 is 44481058.

It is a super-2 number, since 2×85018444² = 14456271640362272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85018447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20784 + ... + 24535.

Almost surely, 2^85018444 is an apocalyptic number.

It is an amenable number.

85018444 is an abundant number, since it is smaller than the sum of its proper divisors (87560116).

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

85018444 is a wasteful number, since it uses less digits than its factorization.

85018444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45397 (or 45395 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 85018444 is about 9220.5446693783. The cubic root of 85018444 is about 439.7147669263.

The spelling of 85018444 in words is "eighty-five million, eighteen thousand, four hundred forty-four".