428032180 has 24 divisors (see below), whose sum is σ = 912286368. Its totient is φ = 168656928.

The previous prime is 428032177. The next prime is 428032193. The reversal of 428032180 is 81230824.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 158374 + ... + 161053.

It is an arithmetic number, because the mean of its divisors is an integer number (38011932).

Almost surely, 2^428032180 is an apocalyptic number.

It is an amenable number.

428032180 is an abundant number, since it is smaller than the sum of its proper divisors (484254188).

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

428032180 is a wasteful number, since it uses less digits than its factorization.

428032180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319503 (or 319501 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 428032180 is about 20688.9385904642. The cubic root of 428032180 is about 753.6310911250.

The spelling of 428032180 in words is "four hundred twenty-eight million, thirty-two thousand, one hundred eighty".