1004000406 has 16 divisors (see below), whose sum is σ = 2010080448. Its totient is φ = 334320200.

The previous prime is 1004000381. The next prime is 1004000411. The reversal of 1004000406 is 6040004001.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 80340 + ... + 91991.

It is an arithmetic number, because the mean of its divisors is an integer number (125630028).

Almost surely, 2^1004000406 is an apocalyptic number.

1004000406 is an abundant number, since it is smaller than the sum of its proper divisors (1006080042).

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

1004000406 is a wasteful number, since it uses less digits than its factorization.

1004000406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173307.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1004000406 is about 31685.9654421323. The cubic root of 1004000406 is about 1001.3316944693.

Adding to 1004000406 its reverse (6040004001), we get a palindrome (7044004407).

The spelling of 1004000406 in words is "one billion, four million, four hundred six", and thus it is an aban number.