1000004022 has 96 divisors (see below), whose sum is σ = 2425217760. Its totient is φ = 304197120.

The previous prime is 1000003999. The next prime is 1000004023. The reversal of 1000004022 is 2204000001.

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 = 1000003995 and 1000004013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000004023) 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 47 ways as a sum of consecutive naturals, for example, 6134913 + ... + 6135075.

It is an arithmetic number, because the mean of its divisors is an integer number (25262685).

Almost surely, 2^1000004022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000004022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212608880).

1000004022 is an abundant number, since it is smaller than the sum of its proper divisors (1425213738).

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

1000004022 is a wasteful number, since it uses less digits than its factorization.

1000004022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 226 counting only the distinct ones).

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

The square root of 1000004022 is about 31622.8401950236. The cubic root of 1000004022 is about 1000.0013406649.

Adding to 1000004022 its reverse (2204000001), we get a palindrome (3204004023).

The spelling of 1000004022 in words is "one billion, four thousand, twenty-two".