8920042 has 16 divisors (see below), whose sum is σ = 13805064. Its totient is φ = 4320000.

The previous prime is 8920039. The next prime is 8920057. The reversal of 8920042 is 2400298.

It can be written as a sum of positive squares in 4 ways, for example, as 4084441 + 4835601 = 2021^2 + 2199^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8919989 and 8920016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14542 + ... + 15142.

Almost surely, 2^8920042 is an apocalyptic number.

8920042 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

8920042 is a deficient number, since it is larger than the sum of its proper divisors (4885022).

8920042 is a wasteful number, since it uses less digits than its factorization.

8920042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 8920042 is about 2986.6439359254. The cubic root of 8920042 is about 207.3905514638.

The spelling of 8920042 in words is "eight million, nine hundred twenty thousand, forty-two".