1004000022 has 40 divisors (see below), whose sum is σ = 2252513736. Its totient is φ = 334248768.

The previous prime is 1004000017. The next prime is 1004000027. The reversal of 1004000022 is 2200004001.

It is an interprime number because it is at equal distance from previous prime (1004000017) and next prime (1004000027).

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

It is a junction number, because it is equal to n+sod(n) for n = 1003999968 and 1004000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004000027) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 143518 + ... + 150350.

Almost surely, 2^1004000022 is an apocalyptic number.

1004000022 is an abundant number, since it is smaller than the sum of its proper divisors (1248513714).

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

1004000022 is an equidigital number, since it uses as much as digits as its factorization.

1004000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7754 (or 7745 counting only the distinct ones).

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

The square root of 1004000022 is about 31685.9593826666. The cubic root of 1004000022 is about 1001.3315668095.

Adding to 1004000022 its reverse (2200004001), we get a palindrome (3204004023).

The spelling of 1004000022 in words is "one billion, four million, twenty-two", and thus it is an aban number.