185020434 has 12 divisors (see below), whose sum is σ = 400877646. Its totient is φ = 61673472.

The previous prime is 185020427. The next prime is 185020447. The reversal of 185020434 is 434020581.

It can be written as a sum of positive squares in only one way, i.e., 166487409 + 18533025 = 12903^2 + 4305^2 .

It is a junction number, because it is equal to n+sod(n) for n = 185020398 and 185020407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5139439 + ... + 5139474.

Almost surely, 2^185020434 is an apocalyptic number.

185020434 is an abundant number, since it is smaller than the sum of its proper divisors (215857212).

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

185020434 is a wasteful number, since it uses less digits than its factorization.

185020434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278921 (or 10278918 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 185020434 is about 13602.2216567736. The cubic root of 185020434 is about 569.8228997356.

The spelling of 185020434 in words is "one hundred eighty-five million, twenty thousand, four hundred thirty-four".