85190240 has 24 divisors (see below), whose sum is σ = 201262320. Its totient is φ = 34076032.

The previous prime is 85190233. The next prime is 85190249. The reversal of 85190240 is 4209158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85190249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266060 + ... + 266379.

It is an arithmetic number, because the mean of its divisors is an integer number (8385930).

Almost surely, 2^85190240 is an apocalyptic number.

85190240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85190240 is an abundant number, since it is smaller than the sum of its proper divisors (116072080).

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

85190240 is a wasteful number, since it uses less digits than its factorization.

85190240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532454 (or 532446 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 85190240 is about 9229.8559035339. The cubic root of 85190240 is about 440.0107435393.

Adding to 85190240 its reverse (4209158), we get a palindrome (89399398).

The spelling of 85190240 in words is "eighty-five million, one hundred ninety thousand, two hundred forty".