428489302 has 8 divisors (see below), whose sum is σ = 642848112. Its totient is φ = 214206600.

The previous prime is 428489263. The next prime is 428489309. The reversal of 428489302 is 203984824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428489309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1849 + ... + 29332.

It is an arithmetic number, because the mean of its divisors is an integer number (80356014).

Almost surely, 2^428489302 is an apocalyptic number.

428489302 is a deficient number, since it is larger than the sum of its proper divisors (214358810).

428489302 is a wasteful number, since it uses less digits than its factorization.

428489302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38054.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 428489302 is about 20699.9831400898. The cubic root of 428489302 is about 753.8992787383.

The spelling of 428489302 in words is "four hundred twenty-eight million, four hundred eighty-nine thousand, three hundred two".