1042420828 has 6 divisors (see below), whose sum is σ = 1824236456. Its totient is φ = 521210412.

The previous prime is 1042420823. The next prime is 1042420843. The reversal of 1042420828 is 8280242401.

It is a self number, because there is not a number n which added to its sum of digits gives 1042420828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042420823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130302600 + ... + 130302607.

Almost surely, 2^1042420828 is an apocalyptic number.

It is an amenable number.

1042420828 is a deficient number, since it is larger than the sum of its proper divisors (781815628).

1042420828 is a wasteful number, since it uses less digits than its factorization.

1042420828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260605211 (or 260605209 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 1042420828 is about 32286.5425216142. The cubic root of 1042420828 is about 1013.9449115306.

The spelling of 1042420828 in words is "one billion, forty-two million, four hundred twenty thousand, eight hundred twenty-eight".