180421468 has 6 divisors (see below), whose sum is σ = 315737576. Its totient is φ = 90210732.

The previous prime is 180421463. The next prime is 180421481. The reversal of 180421468 is 864124081.

It is a super-2 number, since 2×180421468² = 65103812230550048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180421463) 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 as a sum of consecutive naturals, namely, 22552680 + ... + 22552687.

Almost surely, 2^180421468 is an apocalyptic number.

It is an amenable number.

180421468 is a deficient number, since it is larger than the sum of its proper divisors (135316108).

180421468 is a wasteful number, since it uses less digits than its factorization.

180421468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45105371 (or 45105369 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 180421468 is about 13432.1058661701. The cubic root of 180421468 is about 565.0619589034.

The spelling of 180421468 in words is "one hundred eighty million, four hundred twenty-one thousand, four hundred sixty-eight".