85858452 has 36 divisors (see below), whose sum is σ = 220715040. Its totient is φ = 28133712.

The previous prime is 85858441. The next prime is 85858453. The reversal of 85858452 is 25485858.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 85858398 and 85858407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85858453) 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 11 ways as a sum of consecutive naturals, for example, 18088 + ... + 22335.

Almost surely, 2^85858452 is an apocalyptic number.

It is an amenable number.

85858452 is an abundant number, since it is smaller than the sum of its proper divisors (134856588).

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

85858452 is a wasteful number, since it uses less digits than its factorization.

85858452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40492 (or 40487 counting only the distinct ones).

The product of its digits is 512000, while the sum is 45.

The square root of 85858452 is about 9265.9835959276. The cubic root of 85858452 is about 441.1581952085.

The spelling of 85858452 in words is "eighty-five million, eight hundred fifty-eight thousand, four hundred fifty-two".