428289429 has 8 divisors (see below), whose sum is σ = 590744160. Its totient is φ = 275680496.

The previous prime is 428289419. The next prime is 428289457. The reversal of 428289429 is 924982824.

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

It is not a de Polignac number, because 428289429 - 2⁴ = 428289413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428289409) 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, 2461347 + ... + 2461520.

It is an arithmetic number, because the mean of its divisors is an integer number (73843020).

Almost surely, 2^428289429 is an apocalyptic number.

It is an amenable number.

428289429 is a deficient number, since it is larger than the sum of its proper divisors (162454731).

428289429 is a wasteful number, since it uses less digits than its factorization.

428289429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4922899.

The product of its digits is 663552, while the sum is 48.

The square root of 428289429 is about 20695.1547227848. The cubic root of 428289429 is about 753.7820392917.

The spelling of 428289429 in words is "four hundred twenty-eight million, two hundred eighty-nine thousand, four hundred twenty-nine".