180422474 has 4 divisors (see below), whose sum is σ = 270633714. Its totient is φ = 90211236.

The previous prime is 180422447. The next prime is 180422477. The reversal of 180422474 is 474224081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 148669249 + 31753225 = 12193^2 + 5635^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 180422474.

It is not an unprimeable number, because it can be changed into a prime (180422477) 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 as a sum of consecutive naturals, namely, 45105617 + ... + 45105620.

Almost surely, 2^180422474 is an apocalyptic number.

180422474 is a deficient number, since it is larger than the sum of its proper divisors (90211240).

180422474 is an equidigital number, since it uses as much as digits as its factorization.

180422474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90211239.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 180422474 is about 13432.1433137084. The cubic root of 180422474 is about 565.0630091318.

The spelling of 180422474 in words is "one hundred eighty million, four hundred twenty-two thousand, four hundred seventy-four".