6404026 has 8 divisors (see below), whose sum is σ = 10111680. Its totient is φ = 3033468.

The previous prime is 6404023. The next prime is 6404059. The reversal of 6404026 is 6204046.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6403988 and 6404006.

It is not an unprimeable number, because it can be changed into a prime (6404023) 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, 84226 + ... + 84301.

It is an arithmetic number, because the mean of its divisors is an integer number (1263960).

Almost surely, 2^6404026 is an apocalyptic number.

6404026 is a deficient number, since it is larger than the sum of its proper divisors (3707654).

6404026 is a wasteful number, since it uses less digits than its factorization.

6404026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168548.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 6404026 is about 2530.6177111528. The cubic root of 6404026 is about 185.7024765103.

The spelling of 6404026 in words is "six million, four hundred four thousand, twenty-six".