185130438 has 8 divisors (see below), whose sum is σ = 370260888. Its totient is φ = 61710144.

The previous prime is 185130401. The next prime is 185130467. The reversal of 185130438 is 834031581.

185130438 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

185130438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 185130399 and 185130408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15427531 + ... + 15427542.

It is an arithmetic number, because the mean of its divisors is an integer number (46282611).

Almost surely, 2^185130438 is an apocalyptic number.

185130438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

185130438 is a wasteful number, since it uses less digits than its factorization.

185130438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30855078.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 185130438 is about 13606.2646600748. The cubic root of 185130438 is about 569.9358068675.

The spelling of 185130438 in words is "one hundred eighty-five million, one hundred thirty thousand, four hundred thirty-eight".