180773642 has 24 divisors (see below), whose sum is σ = 316172160. Its totient is φ = 77292600.

The previous prime is 180773641. The next prime is 180773647. The reversal of 180773642 is 246377081.

It is a junction number, because it is equal to n+sod(n) for n = 180773596 and 180773605.

It is not an unprimeable number, because it can be changed into a prime (180773641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45017 + ... + 48867.

It is an arithmetic number, because the mean of its divisors is an integer number (13173840).

Almost surely, 2^180773642 is an apocalyptic number.

180773642 is a deficient number, since it is larger than the sum of its proper divisors (135398518).

180773642 is a wasteful number, since it uses less digits than its factorization.

180773642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 180773642 is about 13445.2088864398. The cubic root of 180773642 is about 565.4293778386.

The spelling of 180773642 in words is "one hundred eighty million, seven hundred seventy-three thousand, six hundred forty-two".