42242828 has 6 divisors (see below), whose sum is σ = 73924956. Its totient is φ = 21121412.

The previous prime is 42242803. The next prime is 42242831. The reversal of 42242828 is 82824224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42242794 and 42242803.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280350 + ... + 5280357.

It is an arithmetic number, because the mean of its divisors is an integer number (12320826).

It is a self-describing number.

Almost surely, 2^42242828 is an apocalyptic number.

It is an amenable number.

42242828 is a deficient number, since it is larger than the sum of its proper divisors (31682128).

42242828 is a wasteful number, since it uses less digits than its factorization.

42242828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10560711 (or 10560709 counting only the distinct ones).

The product of its digits is 16384, while the sum is 32.

The square root of 42242828 is about 6499.4482842777. The cubic root of 42242828 is about 348.2712796421.

The spelling of 42242828 in words is "forty-two million, two hundred forty-two thousand, eight hundred twenty-eight".