6626438 has 32 divisors (see below), whose sum is σ = 12773376. Its totient is φ = 2505888.

The previous prime is 6626423. The next prime is 6626443. The reversal of 6626438 is 8346266.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6626398 and 6626407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3395 + ... + 4977.

It is an arithmetic number, because the mean of its divisors is an integer number (399168).

Almost surely, 2^6626438 is an apocalyptic number.

6626438 is a deficient number, since it is larger than the sum of its proper divisors (6146938).

6626438 is a wasteful number, since it uses less digits than its factorization.

6626438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628.

The product of its digits is 41472, while the sum is 35.

The square root of 6626438 is about 2574.1868619042. The cubic root of 6626438 is about 187.8278755051.

The spelling of 6626438 in words is "six million, six hundred twenty-six thousand, four hundred thirty-eight".