185385378 has 16 divisors (see below), whose sum is σ = 372694176. Its totient is φ = 61474560.

The previous prime is 185385377. The next prime is 185385401. The reversal of 185385378 is 873583581.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (185385373) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 78888 + ... + 81203.

It is an arithmetic number, because the mean of its divisors is an integer number (23293386).

Almost surely, 2^185385378 is an apocalyptic number.

185385378 is an abundant number, since it is smaller than the sum of its proper divisors (187308798).

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

185385378 is a wasteful number, since it uses less digits than its factorization.

185385378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160289.

The product of its digits is 806400, while the sum is 48.

The square root of 185385378 is about 13615.6299156521. The cubic root of 185385378 is about 570.1973031953.

The spelling of 185385378 in words is "one hundred eighty-five million, three hundred eighty-five thousand, three hundred seventy-eight".