85440852 has 48 divisors (see below), whose sum is σ = 253160320. Its totient is φ = 24411456.

The previous prime is 85440847. The next prime is 85440857. The reversal of 85440852 is 25804458.

It is an interprime number because it is at equal distance from previous prime (85440847) and next prime (85440857).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85440857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55753 + ... + 57264.

Almost surely, 2^85440852 is an apocalyptic number.

It is an amenable number.

85440852 is an abundant number, since it is smaller than the sum of its proper divisors (167719468).

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

85440852 is a wasteful number, since it uses less digits than its factorization.

85440852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113037 (or 113029 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 85440852 is about 9243.4220935755. The cubic root of 85440852 is about 440.4417945471.

The spelling of 85440852 in words is "eighty-five million, four hundred forty thousand, eight hundred fifty-two".