1073021818 has 16 divisors (see below), whose sum is σ = 1756918656. Its totient is φ = 487441440.

The previous prime is 1073021777. The next prime is 1073021909. The reversal of 1073021818 is 8181203701.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1073021818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24655 + ... + 52477.

It is an arithmetic number, because the mean of its divisors is an integer number (109807416).

Almost surely, 2^1073021818 is an apocalyptic number.

1073021818 is a deficient number, since it is larger than the sum of its proper divisors (683896838).

1073021818 is a wasteful number, since it uses less digits than its factorization.

1073021818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29589.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 1073021818 is about 32757.0117379470. The cubic root of 1073021818 is about 1023.7710650777.

The spelling of 1073021818 in words is "one billion, seventy-three million, twenty-one thousand, eight hundred eighteen".