180541404 has 18 divisors (see below), whose sum is σ = 456368640. Its totient is φ = 60180456.

The previous prime is 180541399. The next prime is 180541433. The reversal of 180541404 is 404145081.

It is a happy number.

180541404 is a `hidden beast` number, since 1 + 80 + 541 + 40 + 4 = 666.

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

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, 2507484 + ... + 2507555.

Almost surely, 2^180541404 is an apocalyptic number.

It is an amenable number.

180541404 is an abundant number, since it is smaller than the sum of its proper divisors (275827236).

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

180541404 is a wasteful number, since it uses less digits than its factorization.

180541404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015049 (or 5015044 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 180541404 is about 13436.5696515145. The cubic root of 180541404 is about 565.1871403472.

Adding to 180541404 its reverse (404145081), we get a palindrome (584686485).

The spelling of 180541404 in words is "one hundred eighty million, five hundred forty-one thousand, four hundred four".