180943422 has 64 divisors (see below), whose sum is σ = 417795840. Its totient is φ = 51667200.

The previous prime is 180943391. The next prime is 180943423. The reversal of 180943422 is 224349081.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180943423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392272 + ... + 392732.

It is an arithmetic number, because the mean of its divisors is an integer number (6528060).

Almost surely, 2^180943422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180943422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208897920).

180943422 is an abundant number, since it is smaller than the sum of its proper divisors (236852418).

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

180943422 is a wasteful number, since it uses less digits than its factorization.

180943422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 180943422 is about 13451.5211779189. The cubic root of 180943422 is about 565.6063368261.

The spelling of 180943422 in words is "one hundred eighty million, nine hundred forty-three thousand, four hundred twenty-two".