6406626 has 16 divisors (see below), whose sum is σ = 12989664. Its totient is φ = 2106144.

The previous prime is 6406601. The next prime is 6406639. The reversal of 6406626 is 6266046.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6406593 and 6406602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6876 + ... + 7751.

It is an arithmetic number, because the mean of its divisors is an integer number (811854).

Almost surely, 2^6406626 is an apocalyptic number.

6406626 is an abundant number, since it is smaller than the sum of its proper divisors (6583038).

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

6406626 is a wasteful number, since it uses less digits than its factorization.

6406626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14705.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 6406626 is about 2531.1313675904. The cubic root of 6406626 is about 185.7276045111.

The spelling of 6406626 in words is "six million, four hundred six thousand, six hundred twenty-six".