1022804 has 12 divisors (see below), whose sum is σ = 1799028. Its totient is φ = 508800.

The previous prime is 1022797. The next prime is 1022821. The reversal of 1022804 is 4082201.

It can be written as a sum of positive squares in 2 ways, for example, as 722500 + 300304 = 850^2 + 548^2 .

It is a super-2 number, since 2×1022804² = 2092256044832, which contains 22 as substring.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434 + ... + 1494.

It is an arithmetic number, because the mean of its divisors is an integer number (149919).

2^1022804 is an apocalyptic number.

It is an amenable number.

1022804 is a deficient number, since it is larger than the sum of its proper divisors (776224).

1022804 is a wasteful number, since it uses less digits than its factorization.

1022804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1022804 is about 1011.3377279623. The cubic root of 1022804 is about 100.7544274131.

The spelling of 1022804 in words is "one million, twenty-two thousand, eight hundred four".