900004742 has 16 divisors (see below), whose sum is σ = 1661547552. Its totient is φ = 356045760.

The previous prime is 900004717. The next prime is 900004747. The reversal of 900004742 is 247400009.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900004747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2472359 + ... + 2472722.

It is an arithmetic number, because the mean of its divisors is an integer number (103846722).

Almost surely, 2^900004742 is an apocalyptic number.

900004742 is a deficient number, since it is larger than the sum of its proper divisors (761542810).

900004742 is a wasteful number, since it uses less digits than its factorization.

900004742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945103.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 900004742 is about 30000.0790332292. The cubic root of 900004742 is about 965.4910802881.

The spelling of 900004742 in words is "nine hundred million, four thousand, seven hundred forty-two".