1000645042 has 8 divisors (see below), whose sum is σ = 1506675456. Its totient is φ = 498419892.

The previous prime is 1000645031. The next prime is 1000645043. The reversal of 1000645042 is 2405460001.

1000645042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1000645043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950658 + ... + 951709.

It is an arithmetic number, because the mean of its divisors is an integer number (188334432).

Almost surely, 2^1000645042 is an apocalyptic number.

1000645042 is a deficient number, since it is larger than the sum of its proper divisors (506030414).

1000645042 is a wasteful number, since it uses less digits than its factorization.

1000645042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902632.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1000645042 is about 31632.9739670490. The cubic root of 1000645042 is about 1000.2149677855.

The spelling of 1000645042 in words is "one billion, six hundred forty-five thousand, forty-two".