85040432 has 20 divisors (see below), whose sum is σ = 165625560. Its totient is φ = 42298368.

The previous prime is 85040429. The next prime is 85040489. The reversal of 85040432 is 23404058.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10682 + ... + 16857.

It is an arithmetic number, because the mean of its divisors is an integer number (8281278).

Almost surely, 2^85040432 is an apocalyptic number.

It is an amenable number.

85040432 is a deficient number, since it is larger than the sum of its proper divisors (80585128).

85040432 is a wasteful number, since it uses less digits than its factorization.

85040432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27740 (or 27734 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 85040432 is about 9221.7369296679. The cubic root of 85040432 is about 439.7526709169.

The spelling of 85040432 in words is "eighty-five million, forty thousand, four hundred thirty-two".