185429930 has 64 divisors (see below), whose sum is σ = 405596160. Its totient is φ = 59621184.

The previous prime is 185429929. The next prime is 185429939. The reversal of 185429930 is 39924581.

185429930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (185429939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141659 + ... + 142961.

It is an arithmetic number, because the mean of its divisors is an integer number (6337440).

Almost surely, 2^185429930 is an apocalyptic number.

185429930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

185429930 is an abundant number, since it is smaller than the sum of its proper divisors (220166230).

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

185429930 is a wasteful number, since it uses less digits than its factorization.

185429930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 185429930 is about 13617.2658782885. The cubic root of 185429930 is about 570.2429763328.

The spelling of 185429930 in words is "one hundred eighty-five million, four hundred twenty-nine thousand, nine hundred thirty".