180238480 has 40 divisors (see below), whose sum is σ = 433510200. Its totient is φ = 69608448.

The previous prime is 180238459. The next prime is 180238483. The reversal of 180238480 is 84832081.

It can be written as a sum of positive squares in 4 ways, for example, as 32080896 + 148157584 = 5664^2 + 12172^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (180238483) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36525 + ... + 41164.

It is an arithmetic number, because the mean of its divisors is an integer number (10837755).

Almost surely, 2^180238480 is an apocalyptic number.

180238480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180238480 is an abundant number, since it is smaller than the sum of its proper divisors (253271720).

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

180238480 is a wasteful number, since it uses less digits than its factorization.

180238480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77731 (or 77725 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 180238480 is about 13425.2925480229. The cubic root of 180238480 is about 564.8708609234.

The spelling of 180238480 in words is "one hundred eighty million, two hundred thirty-eight thousand, four hundred eighty".