180236040 has 128 divisors (see below), whose sum is σ = 583666560. Its totient is φ = 44355584.

The previous prime is 180236009. The next prime is 180236059. The reversal of 180236040 is 40632081.

It is a happy number.

180236040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×180236040² = 64970060229763200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 180236040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107287 + ... + 108953.

It is an arithmetic number, because the mean of its divisors is an integer number (4559895).

Almost surely, 2^180236040 is an apocalyptic number.

180236040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180236040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291833280).

180236040 is an abundant number, since it is smaller than the sum of its proper divisors (403430520).

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

180236040 is a wasteful number, since it uses less digits than its factorization.

180236040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 180236040 is about 13425.2016744628. The cubic root of 180236040 is about 564.8683119096.

The spelling of 180236040 in words is "one hundred eighty million, two hundred thirty-six thousand, forty".