428175408 has 20 divisors (see below), whose sum is σ = 1106119928. Its totient is φ = 142725120.

The previous prime is 428175403. The next prime is 428175421. The reversal of 428175408 is 804571824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (428175403) 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 3 ways as a sum of consecutive naturals, for example, 4460113 + ... + 4460208.

Almost surely, 2^428175408 is an apocalyptic number.

428175408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

428175408 is an abundant number, since it is smaller than the sum of its proper divisors (677944520).

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

428175408 is a wasteful number, since it uses less digits than its factorization.

428175408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8920332 (or 8920326 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 428175408 is about 20692.3997641646. The cubic root of 428175408 is about 753.7151416875.

The spelling of 428175408 in words is "four hundred twenty-eight million, one hundred seventy-five thousand, four hundred eight".