180727434 has 12 divisors (see below), whose sum is σ = 391576146. Its totient is φ = 60242472.

The previous prime is 180727433. The next prime is 180727453. The reversal of 180727434 is 434727081.

It is a happy number.

180727434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 158684409 + 22043025 = 12597^2 + 4695^2 .

It is not an unprimeable number, because it can be changed into a prime (180727433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5020189 + ... + 5020224.

Almost surely, 2^180727434 is an apocalyptic number.

180727434 is an abundant number, since it is smaller than the sum of its proper divisors (210848712).

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

180727434 is a wasteful number, since it uses less digits than its factorization.

180727434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10040421 (or 10040418 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 180727434 is about 13443.4903949830. The cubic root of 180727434 is about 565.3811967969.

It can be divided in two parts, 1807 and 27434, that added together give a square (29241 = 171²).

The spelling of 180727434 in words is "one hundred eighty million, seven hundred twenty-seven thousand, four hundred thirty-four".