85931340 has 48 divisors (see below), whose sum is σ = 262483200. Its totient is φ = 20831680.

The previous prime is 85931323. The next prime is 85931341. The reversal of 85931340 is 4313958.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (85931341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64440 + ... + 65759.

It is an arithmetic number, because the mean of its divisors is an integer number (5468400).

Almost surely, 2^85931340 is an apocalyptic number.

It is an amenable number.

85931340 is an abundant number, since it is smaller than the sum of its proper divisors (176551860).

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

85931340 is a wasteful number, since it uses less digits than its factorization.

85931340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130222 (or 130220 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 85931340 is about 9269.9158572233. The cubic root of 85931340 is about 441.2829976901.

The spelling of 85931340 in words is "eighty-five million, nine hundred thirty-one thousand, three hundred forty".