428043345 has 8 divisors (see below), whose sum is σ = 684869376. Its totient is φ = 228289776.

The previous prime is 428043331. The next prime is 428043349. The reversal of 428043345 is 543340824.

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

It is not a de Polignac number, because 428043345 - 2⁶ = 428043281 is a prime.

It is a super-2 number, since 2×428043345² = 366442210397578050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (428043349) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14268097 + ... + 14268126.

It is an arithmetic number, because the mean of its divisors is an integer number (85608672).

Almost surely, 2^428043345 is an apocalyptic number.

It is an amenable number.

428043345 is a deficient number, since it is larger than the sum of its proper divisors (256826031).

428043345 is a wasteful number, since it uses less digits than its factorization.

428043345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28536231.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 428043345 is about 20689.2084188835. The cubic root of 428043345 is about 753.6376437616.

The spelling of 428043345 in words is "four hundred twenty-eight million, forty-three thousand, three hundred forty-five".