428979580 has 24 divisors (see below), whose sum is σ = 906258528. Its totient is φ = 170563008.

The previous prime is 428979569. The next prime is 428979589. The reversal of 428979580 is 85979824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428979589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60879 + ... + 67558.

It is an arithmetic number, because the mean of its divisors is an integer number (37760772).

Almost surely, 2^428979580 is an apocalyptic number.

It is an amenable number.

428979580 is an abundant number, since it is smaller than the sum of its proper divisors (477278948).

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

428979580 is a wasteful number, since it uses less digits than its factorization.

428979580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128613 (or 128611 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 428979580 is about 20711.8222278968. The cubic root of 428979580 is about 754.1867066430.

The spelling of 428979580 in words is "four hundred twenty-eight million, nine hundred seventy-nine thousand, five hundred eighty".