1022004 has 24 divisors (see below), whose sum is σ = 2649920. Its totient is φ = 340632.

The previous prime is 1021973. The next prime is 1022011. The reversal of 1022004 is 4002201.

1022004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4624 + ... + 4839.

2^1022004 is an apocalyptic number.

It is an amenable number.

1022004 is an abundant number, since it is smaller than the sum of its proper divisors (1627916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022004 is a wasteful number, since it uses less digits than its factorization.

1022004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9476 (or 9468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1022004 is about 1010.9421348425. The cubic root of 1022004 is about 100.7281517480.

Adding to 1022004 its reverse (4002201), we get a palindrome (5024205).

The spelling of 1022004 in words is "one million, twenty-two thousand, four".