6404364 has 36 divisors (see below), whose sum is σ = 16587480. Its totient is φ = 2082240.

The previous prime is 6404357. The next prime is 6404369. The reversal of 6404364 is 4634046.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (6404369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 694 + ... + 3645.

Almost surely, 2^6404364 is an apocalyptic number.

It is an amenable number.

6404364 is an abundant number, since it is smaller than the sum of its proper divisors (10183116).

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

6404364 is a wasteful number, since it uses less digits than its factorization.

6404364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390 (or 4385 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 6404364 is about 2530.6844923854. The cubic root of 6404364 is about 185.7057435350.

The spelling of 6404364 in words is "six million, four hundred four thousand, three hundred sixty-four".