6404004002 has 8 divisors (see below), whose sum is σ = 10479279312. Its totient is φ = 2910910900.

The previous prime is 6404004001. The next prime is 6404004043. The reversal of 6404004002 is 2004004046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6404004002² = 82022534515264032008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6404004001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145545524 + ... + 145545567.

It is an arithmetic number, because the mean of its divisors is an integer number (1309909914).

Almost surely, 2^6404004002 is an apocalyptic number.

6404004002 is a deficient number, since it is larger than the sum of its proper divisors (4075275310).

6404004002 is a wasteful number, since it uses less digits than its factorization.

6404004002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291091104.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 6404004002 is about 80025.0210996536. The cubic root of 6404004002 is about 1857.0226387906.

Adding to 6404004002 its reverse (2004004046), we get a palindrome (8408008048).

The spelling of 6404004002 in words is "six billion, four hundred four million, four thousand, two".