428106365 has 8 divisors (see below), whose sum is σ = 513997368. Its totient is φ = 342305280.

The previous prime is 428106361. The next prime is 428106389. The reversal of 428106365 is 563601824.

It can be written as a sum of positive squares in 4 ways, for example, as 19945156 + 408161209 = 4466^2 + 20203^2 .

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

It is not a de Polignac number, because 428106365 - 2² = 428106361 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 (428106361) 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, 11516 + ... + 31445.

It is an arithmetic number, because the mean of its divisors is an integer number (64249671).

Almost surely, 2^428106365 is an apocalyptic number.

It is an amenable number.

428106365 is a deficient number, since it is larger than the sum of its proper divisors (85891003).

428106365 is a wasteful number, since it uses less digits than its factorization.

428106365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44959.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 428106365 is about 20690.7313790499. The cubic root of 428106365 is about 753.6746274879.

The spelling of 428106365 in words is "four hundred twenty-eight million, one hundred six thousand, three hundred sixty-five".