428110639 has 8 divisors (see below), whose sum is σ = 476967168. Its totient is φ = 380910360.

The previous prime is 428110633. The next prime is 428110681. The reversal of 428110639 is 936011824.

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

It is a cyclic number.

It is not a de Polignac number, because 428110639 - 2⁵ = 428110607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428110633) 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, 413517 + ... + 414550.

It is an arithmetic number, because the mean of its divisors is an integer number (59620896).

Almost surely, 2^428110639 is an apocalyptic number.

428110639 is a deficient number, since it is larger than the sum of its proper divisors (48856529).

428110639 is a wasteful number, since it uses less digits than its factorization.

428110639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828125.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 428110639 is about 20690.8346617530. The cubic root of 428110639 is about 753.6771355831.

The spelling of 428110639 in words is "four hundred twenty-eight million, one hundred ten thousand, six hundred thirty-nine".