428324285 has 8 divisors (see below), whose sum is σ = 536336640. Its totient is φ = 327761104.

The previous prime is 428324263. The next prime is 428324291. The reversal of 428324285 is 582423824.

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 428324285 - 2²⁴ = 411547069 is a prime.

It is a super-2 number, since 2×428324285² = 366923386241522450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862165 + ... + 1862394.

It is an arithmetic number, because the mean of its divisors is an integer number (67042080).

Almost surely, 2^428324285 is an apocalyptic number.

It is an amenable number.

428324285 is a deficient number, since it is larger than the sum of its proper divisors (108012355).

428324285 is a wasteful number, since it uses less digits than its factorization.

428324285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724587.

The product of its digits is 122880, while the sum is 38.

The square root of 428324285 is about 20695.9968351370. The cubic root of 428324285 is about 753.8024873907.

The spelling of 428324285 in words is "four hundred twenty-eight million, three hundred twenty-four thousand, two hundred eighty-five".