180725444 has 36 divisors (see below), whose sum is σ = 332967936. Its totient is φ = 85821648.

The previous prime is 180725429. The next prime is 180725471. The reversal of 180725444 is 444527081.

180725444 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×180725444² = 65323372217994272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

180725444 is strictly pandigital in base 9.

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, 471677 + ... + 472059.

Almost surely, 2^180725444 is an apocalyptic number.

It is an amenable number.

180725444 is a deficient number, since it is larger than the sum of its proper divisors (152242492).

180725444 is a wasteful number, since it uses less digits than its factorization.

180725444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 180725444 is about 13443.4163812626. The cubic root of 180725444 is about 565.3791216412.

The spelling of 180725444 in words is "one hundred eighty million, seven hundred twenty-five thousand, four hundred forty-four".