85619240 has 32 divisors (see below), whose sum is σ = 220164480. Its totient is φ = 29355072.

The previous prime is 85619227. The next prime is 85619243. The reversal of 85619240 is 4291658.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 85619240.

It is not an unprimeable number, because it can be changed into a prime (85619243) 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, 152612 + ... + 153171.

It is an arithmetic number, because the mean of its divisors is an integer number (6880140).

Almost surely, 2^85619240 is an apocalyptic number.

It is an amenable number.

85619240 is an abundant number, since it is smaller than the sum of its proper divisors (134545240).

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

85619240 is a wasteful number, since it uses less digits than its factorization.

85619240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305801 (or 305797 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 85619240 is about 9253.0665187277. The cubic root of 85619240 is about 440.7481074790.

The spelling of 85619240 in words is "eighty-five million, six hundred nineteen thousand, two hundred forty".