900010042 has 16 divisors (see below), whose sum is σ = 1402129152. Its totient is φ = 432812160.

The previous prime is 900010037. The next prime is 900010049. The reversal of 900010042 is 240010009.

It is a junction number, because it is equal to n+sod(n) for n = 900009998 and 900010025.

It is not an unprimeable number, because it can be changed into a prime (900010049) 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 in 7 ways as a sum of consecutive naturals, for example, 34423 + ... + 54634.

It is an arithmetic number, because the mean of its divisors is an integer number (87633072).

Almost surely, 2^900010042 is an apocalyptic number.

900010042 is a deficient number, since it is larger than the sum of its proper divisors (502119110).

900010042 is a wasteful number, since it uses less digits than its factorization.

900010042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89253.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 900010042 is about 30000.1673661998. The cubic root of 900010042 is about 965.4929754976.

The spelling of 900010042 in words is "nine hundred million, ten thousand, forty-two".