6649426 has 8 divisors (see below), whose sum is σ = 11399040. Its totient is φ = 2849748.

The previous prime is 6649417. The next prime is 6649441. The reversal of 6649426 is 6249466.

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

It is a super-2 number, since 2×6649426² = 88429732258952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237466 + ... + 237493.

It is an arithmetic number, because the mean of its divisors is an integer number (1424880).

Almost surely, 2^6649426 is an apocalyptic number.

6649426 is a deficient number, since it is larger than the sum of its proper divisors (4749614).

6649426 is a wasteful number, since it uses less digits than its factorization.

6649426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474968.

The product of its digits is 62208, while the sum is 37.

The square root of 6649426 is about 2578.6480954174. The cubic root of 6649426 is about 188.0448248329.

The spelling of 6649426 in words is "six million, six hundred forty-nine thousand, four hundred twenty-six".