85738240 has 108 divisors (see below), whose sum is σ = 239074416. Its totient is φ = 29374464.

The previous prime is 85738231. The next prime is 85738267. The reversal of 85738240 is 4283758.

It is a self number, because there is not a number n which added to its sum of digits gives 85738240.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62037 + ... + 63403.

It is an arithmetic number, because the mean of its divisors is an integer number (2213652).

Almost surely, 2^85738240 is an apocalyptic number.

85738240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85738240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119537208).

85738240 is an abundant number, since it is smaller than the sum of its proper divisors (153336176).

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

85738240 is a wasteful number, since it uses less digits than its factorization.

85738240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 85738240 is about 9259.4945866392. The cubic root of 85738240 is about 440.9522078048.

The spelling of 85738240 in words is "eighty-five million, seven hundred thirty-eight thousand, two hundred forty".