85740234 has 16 divisors (see below), whose sum is σ = 177012480. Its totient is φ = 27658080.

The previous prime is 85740233. The next prime is 85740283. The reversal of 85740234 is 43204758.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85740195 and 85740204.

It is not an unprimeable number, because it can be changed into a prime (85740233) 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, 230299 + ... + 230670.

It is an arithmetic number, because the mean of its divisors is an integer number (11063280).

Almost surely, 2^85740234 is an apocalyptic number.

85740234 is an abundant number, since it is smaller than the sum of its proper divisors (91272246).

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

85740234 is a wasteful number, since it uses less digits than its factorization.

85740234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461005.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 85740234 is about 9259.6022592766. The cubic root of 85740234 is about 440.9556261624.

The spelling of 85740234 in words is "eighty-five million, seven hundred forty thousand, two hundred thirty-four".