6416404 has 6 divisors (see below), whose sum is σ = 11228714. Its totient is φ = 3208200.

The previous prime is 6416383. The next prime is 6416413. The reversal of 6416404 is 4046146.

It can be written as a sum of positive squares in only one way, i.e., 6240004 + 176400 = 2498^2 + 420^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802047 + ... + 802054.

Almost surely, 2^6416404 is an apocalyptic number.

It is an amenable number.

6416404 is a deficient number, since it is larger than the sum of its proper divisors (4812310).

6416404 is a wasteful number, since it uses less digits than its factorization.

6416404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604105 (or 1604103 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 6416404 is about 2533.0621784710. The cubic root of 6416404 is about 185.8220443092.

The spelling of 6416404 in words is "six million, four hundred sixteen thousand, four hundred four".