428663060 has 48 divisors (see below), whose sum is σ = 1029974400. Its totient is φ = 146801280.

The previous prime is 428663051. The next prime is 428663063. The reversal of 428663060 is 60366824.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 428663060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428663063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218966 + ... + 220914.

It is an arithmetic number, because the mean of its divisors is an integer number (21457800).

Almost surely, 2^428663060 is an apocalyptic number.

It is an amenable number.

428663060 is an abundant number, since it is smaller than the sum of its proper divisors (601311340).

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

428663060 is a wasteful number, since it uses less digits than its factorization.

428663060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 428663060 is about 20704.1797712443. The cubic root of 428663060 is about 754.0011702965.

The spelling of 428663060 in words is "four hundred twenty-eight million, six hundred sixty-three thousand, sixty".