85378542 has 16 divisors (see below), whose sum is σ = 171316992. Its totient is φ = 28366200.

The previous prime is 85378541. The next prime is 85378547. The reversal of 85378542 is 24587358.

It is a junction number, because it is equal to n+sod(n) for n = 85378494 and 85378503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85378541) 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, 21334 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (10707312).

Almost surely, 2^85378542 is an apocalyptic number.

85378542 is an abundant number, since it is smaller than the sum of its proper divisors (85938450).

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

85378542 is a wasteful number, since it uses less digits than its factorization.

85378542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46663.

The product of its digits is 268800, while the sum is 42.

The square root of 85378542 is about 9240.0509738854. The cubic root of 85378542 is about 440.3347005685.

The spelling of 85378542 in words is "eighty-five million, three hundred seventy-eight thousand, five hundred forty-two".