180761742 has 24 divisors (see below), whose sum is σ = 447600816. Its totient is φ = 51646176.

The previous prime is 180761729. The next prime is 180761753. The reversal of 180761742 is 247167081.

It is a junction number, because it is equal to n+sod(n) for n = 180761697 and 180761706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717183 + ... + 717434.

It is an arithmetic number, because the mean of its divisors is an integer number (18650034).

Almost surely, 2^180761742 is an apocalyptic number.

180761742 is an abundant number, since it is smaller than the sum of its proper divisors (266839074).

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

180761742 is a wasteful number, since it uses less digits than its factorization.

180761742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434632 (or 1434629 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 180761742 is about 13444.7663423356. The cubic root of 180761742 is about 565.4169705039.

It can be divided in two parts, 180761 and 742, that added together give a triangular number (181503 = T₆₀₂).

The spelling of 180761742 in words is "one hundred eighty million, seven hundred sixty-one thousand, seven hundred forty-two".