180198420 has 24 divisors (see below), whose sum is σ = 504555744. Its totient is φ = 48052896.

The previous prime is 180198409. The next prime is 180198433. The reversal of 180198420 is 24891081.

180198420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501594 + ... + 1501713.

It is an arithmetic number, because the mean of its divisors is an integer number (21023156).

Almost surely, 2^180198420 is an apocalyptic number.

180198420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180198420 is an abundant number, since it is smaller than the sum of its proper divisors (324357324).

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

180198420 is a wasteful number, since it uses less digits than its factorization.

180198420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003319 (or 3003317 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 180198420 is about 13423.8005050731. The cubic root of 180198420 is about 564.8290082191.

The spelling of 180198420 in words is "one hundred eighty million, one hundred ninety-eight thousand, four hundred twenty".