1020818 has 16 divisors (see below), whose sum is σ = 1602720. Its totient is φ = 487200.

The previous prime is 1020797. The next prime is 1020821. The reversal of 1020818 is 8180201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020818.

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, 4733 + ... + 4943.

It is an arithmetic number, because the mean of its divisors is an integer number (100170).

2^1020818 is an apocalyptic number.

1020818 is a deficient number, since it is larger than the sum of its proper divisors (581902).

1020818 is a wasteful number, since it uses less digits than its factorization.

1020818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1020818 is about 1010.3553830212. The cubic root of 1020818 is about 100.6891728305.

The spelling of 1020818 in words is "one million, twenty thousand, eight hundred eighteen".