180668738 has 8 divisors (see below), whose sum is σ = 275596560. Its totient is φ = 88803220.

The previous prime is 180668731. The next prime is 180668767. The reversal of 180668738 is 837866081.

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

It is a junction number, because it is equal to n+sod(n) for n = 180668692 and 180668701.

It is not an unprimeable number, because it can be changed into a prime (180668731) 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 in 3 ways as a sum of consecutive naturals, for example, 765428 + ... + 765663.

It is an arithmetic number, because the mean of its divisors is an integer number (34449570).

Almost surely, 2^180668738 is an apocalyptic number.

180668738 is a deficient number, since it is larger than the sum of its proper divisors (94927822).

180668738 is a wasteful number, since it uses less digits than its factorization.

180668738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531152.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 180668738 is about 13441.3071536960. The cubic root of 180668738 is about 565.3199826852.

The spelling of 180668738 in words is "one hundred eighty million, six hundred sixty-eight thousand, seven hundred thirty-eight".