428607324 has 36 divisors (see below), whose sum is σ = 1084290480. Its totient is φ = 142754880.

The previous prime is 428607313. The next prime is 428607379. The reversal of 428607324 is 423706824.

428607324 is a `hidden beast` number, since 4 + 28 + 607 + 3 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49297 + ... + 57335.

It is an arithmetic number, because the mean of its divisors is an integer number (30119180).

Almost surely, 2^428607324 is an apocalyptic number.

It is an amenable number.

428607324 is an abundant number, since it is smaller than the sum of its proper divisors (655683156).

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

428607324 is a wasteful number, since it uses less digits than its factorization.

428607324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9530 (or 9525 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 428607324 is about 20702.8337190830. The cubic root of 428607324 is about 753.9684897488.

The spelling of 428607324 in words is "four hundred twenty-eight million, six hundred seven thousand, three hundred twenty-four".