180623442 has 8 divisors (see below), whose sum is σ = 361246896. Its totient is φ = 60207812.

The previous prime is 180623431. The next prime is 180623447. The reversal of 180623442 is 244326081.

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

180623442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (180623447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15051948 + ... + 15051959.

It is an arithmetic number, because the mean of its divisors is an integer number (45155862).

Almost surely, 2^180623442 is an apocalyptic number.

180623442 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.

180623442 is a wasteful number, since it uses less digits than its factorization.

180623442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30103912.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 180623442 is about 13439.6220929013. The cubic root of 180623442 is about 565.2727343815.

The spelling of 180623442 in words is "one hundred eighty million, six hundred twenty-three thousand, four hundred forty-two".