6662406 has 8 divisors (see below), whose sum is σ = 13324824. Its totient is φ = 2220800.

The previous prime is 6662401. The next prime is 6662417. The reversal of 6662406 is 6042666.

It is a sphenic number, since it is the product of 3 distinct primes.

6662406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555195 + ... + 555206.

It is an arithmetic number, because the mean of its divisors is an integer number (1665603).

Almost surely, 2^6662406 is an apocalyptic number.

6662406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6662406 is a wasteful number, since it uses less digits than its factorization.

6662406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110406.

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

The square root of 6662406 is about 2581.1636910510. The cubic root of 6662406 is about 188.1671028233.

The spelling of 6662406 in words is "six million, six hundred sixty-two thousand, four hundred six".