428604429 has 16 divisors (see below), whose sum is σ = 626598720. Its totient is φ = 258437760.

The previous prime is 428604401. The next prime is 428604431. The reversal of 428604429 is 924406824.

It is not a de Polignac number, because 428604429 - 2⁸ = 428604173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428604469) 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, 26464 + ... + 39465.

It is an arithmetic number, because the mean of its divisors is an integer number (39162420).

Almost surely, 2^428604429 is an apocalyptic number.

It is an amenable number.

428604429 is a deficient number, since it is larger than the sum of its proper divisors (197994291).

428604429 is a wasteful number, since it uses less digits than its factorization.

428604429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66140.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 428604429 is about 20702.7638010001. The cubic root of 428604429 is about 753.9667922014.

The spelling of 428604429 in words is "four hundred twenty-eight million, six hundred four thousand, four hundred twenty-nine".