180299942 has 4 divisors (see below), whose sum is σ = 270449916. Its totient is φ = 90149970.

The previous prime is 180299939. The next prime is 180299947. The reversal of 180299942 is 249992081.

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

It is a junction number, because it is equal to n+sod(n) for n = 180299893 and 180299902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180299947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45074984 + ... + 45074987.

It is an arithmetic number, because the mean of its divisors is an integer number (67612479).

Almost surely, 2^180299942 is an apocalyptic number.

180299942 is a deficient number, since it is larger than the sum of its proper divisors (90149974).

180299942 is an equidigital number, since it uses as much as digits as its factorization.

180299942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90149973.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 180299942 is about 13427.5813905558. The cubic root of 180299942 is about 564.9350613229.

The spelling of 180299942 in words is "one hundred eighty million, two hundred ninety-nine thousand, nine hundred forty-two".