6404246 has 4 divisors (see below), whose sum is σ = 9606372. Its totient is φ = 3202122.

The previous prime is 6404243. The next prime is 6404249. The reversal of 6404246 is 6424046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6424046 = 2 ⋅3212023.

It is an interprime number because it is at equal distance from previous prime (6404243) and next prime (6404249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601060 + ... + 1601063.

It is an arithmetic number, because the mean of its divisors is an integer number (2401593).

Almost surely, 2^6404246 is an apocalyptic number.

6404246 is a deficient number, since it is larger than the sum of its proper divisors (3202126).

6404246 is a wasteful number, since it uses less digits than its factorization.

6404246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202125.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 6404246 is about 2530.6611784275. The cubic root of 6404246 is about 185.7046029891.

The spelling of 6404246 in words is "six million, four hundred four thousand, two hundred forty-six".