428875405 has 32 divisors (see below), whose sum is σ = 624443904. Its totient is φ = 276043776.

The previous prime is 428875397. The next prime is 428875409. The reversal of 428875405 is 504578824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 428875405 - 2³ = 428875397 is a prime.

It is a super-2 number, since 2×428875405² = 367868226027828050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428875409) 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 31 ways as a sum of consecutive naturals, for example, 298569 + ... + 300001.

It is an arithmetic number, because the mean of its divisors is an integer number (19513872).

Almost surely, 2^428875405 is an apocalyptic number.

It is an amenable number.

428875405 is a deficient number, since it is larger than the sum of its proper divisors (195568499).

428875405 is a wasteful number, since it uses less digits than its factorization.

428875405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965.

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 428875405 is about 20709.3072071472. The cubic root of 428875405 is about 754.1256518636.

The spelling of 428875405 in words is "four hundred twenty-eight million, eight hundred seventy-five thousand, four hundred five".