180806004 has 18 divisors (see below), whose sum is σ = 457037490. Its totient is φ = 60268656.

The previous prime is 180805993. The next prime is 180806047. The reversal of 180806004 is 400608081.

180806004 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 179506404 + 1299600 = 13398^2 + 1140^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×180806004² = 65381622164896032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2511159 + ... + 2511230.

Almost surely, 2^180806004 is an apocalyptic number.

It is an amenable number.

180806004 is an abundant number, since it is smaller than the sum of its proper divisors (276231486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180806004 is a wasteful number, since it uses less digits than its factorization.

180806004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022399 (or 5022394 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 180806004 is about 13446.4123096088. The cubic root of 180806004 is about 565.4631167796.

The spelling of 180806004 in words is "one hundred eighty million, eight hundred six thousand, four".