428308822 has 8 divisors (see below), whose sum is σ = 642556656. Its totient is φ = 214123272.

The previous prime is 428308817. The next prime is 428308843. The reversal of 428308822 is 228803824.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10063 + ... + 30949.

It is an arithmetic number, because the mean of its divisors is an integer number (80319582).

Almost surely, 2^428308822 is an apocalyptic number.

428308822 is a deficient number, since it is larger than the sum of its proper divisors (214247834).

428308822 is a wasteful number, since it uses less digits than its factorization.

428308822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31142.

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 428308822 is about 20695.6232571044. The cubic root of 428308822 is about 753.7934162356.

The spelling of 428308822 in words is "four hundred twenty-eight million, three hundred eight thousand, eight hundred twenty-two".