428088406 has 8 divisors (see below), whose sum is σ = 642228984. Its totient is φ = 214012080.

The previous prime is 428088403. The next prime is 428088413. The reversal of 428088406 is 604880824.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428088403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7521 + ... + 30211.

It is an arithmetic number, because the mean of its divisors is an integer number (80278623).

Almost surely, 2^428088406 is an apocalyptic number.

428088406 is a deficient number, since it is larger than the sum of its proper divisors (214140578).

428088406 is a wasteful number, since it uses less digits than its factorization.

428088406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32126.

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 428088406 is about 20690.2973879062. The cubic root of 428088406 is about 753.6640884933.

The spelling of 428088406 in words is "four hundred twenty-eight million, eighty-eight thousand, four hundred six".