428350213 has 8 divisors (see below), whose sum is σ = 444104280. Its totient is φ = 412661760.

The previous prime is 428350201. The next prime is 428350243. The reversal of 428350213 is 312053824.

It can be written as a sum of positive squares in 4 ways, for example, as 113571649 + 314778564 = 10657^2 + 17742^2 .

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 428350213 - 2¹³ = 428342021 is a prime.

It is a super-4 number, since 4×428350213⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428350243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2908 + ... + 29413.

It is an arithmetic number, because the mean of its divisors is an integer number (55513035).

Almost surely, 2^428350213 is an apocalyptic number.

It is an amenable number.

428350213 is a deficient number, since it is larger than the sum of its proper divisors (15754067).

428350213 is a wasteful number, since it uses less digits than its factorization.

428350213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32807.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 428350213 is about 20696.6232269904. The cubic root of 428350213 is about 753.8176972035.

The spelling of 428350213 in words is "four hundred twenty-eight million, three hundred fifty thousand, two hundred thirteen".