442226828 has 6 divisors (see below), whose sum is σ = 773896956. Its totient is φ = 221113412.

The previous prime is 442226789. The next prime is 442226833. The reversal of 442226828 is 828622244.

It is a junction number, because it is equal to n+sod(n) for n = 442226791 and 442226800.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55278350 + ... + 55278357.

It is an arithmetic number, because the mean of its divisors is an integer number (128982826).

Almost surely, 2^442226828 is an apocalyptic number.

It is an amenable number.

442226828 is a deficient number, since it is larger than the sum of its proper divisors (331670128).

442226828 is a wasteful number, since it uses less digits than its factorization.

442226828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110556711 (or 110556709 counting only the distinct ones).

The product of its digits is 98304, while the sum is 38.

The square root of 442226828 is about 21029.1899035602. The cubic root of 442226828 is about 761.8714428701.

The spelling of 442226828 in words is "four hundred forty-two million, two hundred twenty-six thousand, eight hundred twenty-eight".