180425428 has 24 divisors (see below), whose sum is σ = 320279400. Its totient is φ = 88923648.

The previous prime is 180425417. The next prime is 180425429. The reversal of 180425428 is 824524081.

It can be written as a sum of positive squares in 4 ways, for example, as 1882384 + 178543044 = 1372^2 + 13362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180425393 and 180425402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180425429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162138 + ... + 163246.

It is an arithmetic number, because the mean of its divisors is an integer number (13344975).

Almost surely, 2^180425428 is an apocalyptic number.

It is an amenable number.

180425428 is a deficient number, since it is larger than the sum of its proper divisors (139853972).

180425428 is a wasteful number, since it uses less digits than its factorization.

180425428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 180425428 is about 13432.2532733715. The cubic root of 180425428 is about 565.0660929809.

The spelling of 180425428 in words is "one hundred eighty million, four hundred twenty-five thousand, four hundred twenty-eight".