180012740 has 12 divisors (see below), whose sum is σ = 378026796. Its totient is φ = 72005088.

The previous prime is 180012739. The next prime is 180012787. The reversal of 180012740 is 47210081.

180012740 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 2 ways, for example, as 25060036 + 154952704 = 5006^2 + 12448^2 .

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, 4500299 + ... + 4500338.

It is an arithmetic number, because the mean of its divisors is an integer number (31502233).

Almost surely, 2^180012740 is an apocalyptic number.

180012740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180012740 is an abundant number, since it is smaller than the sum of its proper divisors (198014056).

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

180012740 is a wasteful number, since it uses less digits than its factorization.

180012740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000646 (or 9000644 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 180012740 is about 13416.8826483651. The cubic root of 180012740 is about 564.6349379021.

The spelling of 180012740 in words is "one hundred eighty million, twelve thousand, seven hundred forty".