428625180 has 72 divisors (see below), whose sum is σ = 1368603600. Its totient is φ = 108283392.

The previous prime is 428625179. The next prime is 428625181. The reversal of 428625180 is 81526824.

428625180 is a `hidden beast` number, since 4 + 28 + 625 + 1 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (428625179) and next prime (428625181).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428625181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59245 + ... + 66084.

Almost surely, 2^428625180 is an apocalyptic number.

It is an amenable number.

428625180 is an abundant number, since it is smaller than the sum of its proper divisors (939978420).

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

428625180 is a wasteful number, since it uses less digits than its factorization.

428625180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125363 (or 125358 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 428625180 is about 20703.2649599043. The cubic root of 428625180 is about 753.9789598409.

The spelling of 428625180 in words is "four hundred twenty-eight million, six hundred twenty-five thousand, one hundred eighty".