428346 has 24 divisors (see below), whose sum is σ = 947700. Its totient is φ = 139776.

The previous prime is 428339. The next prime is 428353. The reversal of 428346 is 643824.

It is an interprime number because it is at equal distance from previous prime (428339) and next prime (428353).

It can be written as a sum of positive squares in 2 ways, for example, as 416025 + 12321 = 645^2 + 111^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730 + ... + 1178.

2⁴²⁸³⁴⁶ is an apocalyptic number.

428346 is an abundant number, since it is smaller than the sum of its proper divisors (519354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428346 is a wasteful number, since it uses less digits than its factorization.

428346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 507 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 428346 is about 654.4814741458. The cubic root of 428346 is about 75.3815225827.

The spelling of 428346 in words is "four hundred twenty-eight thousand, three hundred forty-six".