6642374 has 8 divisors (see below), whose sum is σ = 10007760. Its totient is φ = 3306456.

The previous prime is 6642373. The next prime is 6642379. The reversal of 6642374 is 4732466.

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

It is a super-2 number, since 2×6642374² = 88242264711752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6642374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642371) 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, 6794 + ... + 7709.

It is an arithmetic number, because the mean of its divisors is an integer number (1250970).

Almost surely, 2^6642374 is an apocalyptic number.

6642374 is a deficient number, since it is larger than the sum of its proper divisors (3365386).

6642374 is a wasteful number, since it uses less digits than its factorization.

6642374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14734.

The product of its digits is 24192, while the sum is 32.

The square root of 6642374 is about 2577.2803495157. The cubic root of 6642374 is about 187.9783247985.

The spelling of 6642374 in words is "six million, six hundred forty-two thousand, three hundred seventy-four".