180426 has 8 divisors (see below), whose sum is σ = 360864. Its totient is φ = 60140.

The previous prime is 180419. The next prime is 180437. The reversal of 180426 is 624081.

It is a sphenic number, since it is the product of 3 distinct primes.

180426 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15030 + ... + 15041.

It is an arithmetic number, because the mean of its divisors is an integer number (45108).

2¹⁸⁰⁴²⁶ is an apocalyptic number.

180426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

180426 is a wasteful number, since it uses less digits than its factorization.

180426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30076.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 180426 is about 424.7658178338. The cubic root of 180426 is about 56.5066690120.

It can be divided in two parts, 1804 and 26, that added together give a triangular number (1830 = T₆₀).

The spelling of 180426 in words is "one hundred eighty thousand, four hundred twenty-six".