6466438 has 32 divisors (see below), whose sum is σ = 11104128. Its totient is φ = 2798400.

The previous prime is 6466433. The next prime is 6466457. The reversal of 6466438 is 8346646.

It is a junction number, because it is equal to n+sod(n) for n = 6466397 and 6466406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466433) 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 in 15 ways as a sum of consecutive naturals, for example, 60381 + ... + 60487.

It is an arithmetic number, because the mean of its divisors is an integer number (347004).

Almost surely, 2^6466438 is an apocalyptic number.

6466438 is a deficient number, since it is larger than the sum of its proper divisors (4637690).

6466438 is a wasteful number, since it uses less digits than its factorization.

6466438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its digits is 82944, while the sum is 37.

The square root of 6466438 is about 2542.9191886491. The cubic root of 6466438 is about 186.3037969006.

The spelling of 6466438 in words is "six million, four hundred sixty-six thousand, four hundred thirty-eight".