6630442 has 32 divisors (see below), whose sum is σ = 12966912. Its totient is φ = 2467584.

The previous prime is 6630433. The next prime is 6630457. The reversal of 6630442 is 2440366.

It is a super-2 number, since 2×6630442² = 87925522230728, which contains 22 as substring.

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, 2023 + ... + 4165.

It is an arithmetic number, because the mean of its divisors is an integer number (405216).

Almost surely, 2^6630442 is an apocalyptic number.

6630442 is a deficient number, since it is larger than the sum of its proper divisors (6336470).

6630442 is a wasteful number, since it uses less digits than its factorization.

6630442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 6630442 is about 2574.9644657742. The cubic root of 6630442 is about 187.8656993147.

The spelling of 6630442 in words is "six million, six hundred thirty thousand, four hundred forty-two".