85052440 has 32 divisors (see below), whose sum is σ = 208766160. Its totient is φ = 30928000.

The previous prime is 85052393. The next prime is 85052441. The reversal of 85052440 is 4425058.

It is a junction number, because it is equal to n+sod(n) for n = 85052399 and 85052408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85052441) 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, 96211 + ... + 97090.

Almost surely, 2^85052440 is an apocalyptic number.

It is an amenable number.

85052440 is an abundant number, since it is smaller than the sum of its proper divisors (123713720).

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

85052440 is a wasteful number, since it uses less digits than its factorization.

85052440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193323 (or 193319 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 85052440 is about 9222.3879770914. The cubic root of 85052440 is about 439.7733681367.

Adding to 85052440 its reverse (4425058), we get a palindrome (89477498).

The spelling of 85052440 in words is "eighty-five million, fifty-two thousand, four hundred forty".