1020844 has 12 divisors (see below), whose sum is σ = 1948968. Its totient is φ = 464000.

The previous prime is 1020841. The next prime is 1020847. The reversal of 1020844 is 4480201.

It is an interprime number because it is at equal distance from previous prime (1020841) and next prime (1020847).

It is not an unprimeable number, because it can be changed into a prime (1020841) 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, 11557 + ... + 11644.

It is an arithmetic number, because the mean of its divisors is an integer number (162414).

2^1020844 is an apocalyptic number.

It is an amenable number.

1020844 is a deficient number, since it is larger than the sum of its proper divisors (928124).

1020844 is a wasteful number, since it uses less digits than its factorization.

1020844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23216 (or 23214 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1020844 is about 1010.3682496991. The cubic root of 1020844 is about 100.6900276666.

The spelling of 1020844 in words is "one million, twenty thousand, eight hundred forty-four".