6742644 has 24 divisors (see below), whose sum is σ = 16561440. Its totient is φ = 2129184.

The previous prime is 6742643. The next prime is 6742649. The reversal of 6742644 is 4462476.

It is a super-2 number, since 2×6742644² = 90926496221472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6742643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14559 + ... + 15014.

It is an arithmetic number, because the mean of its divisors is an integer number (690060).

Almost surely, 2^6742644 is an apocalyptic number.

It is an amenable number.

6742644 is an abundant number, since it is smaller than the sum of its proper divisors (9818796).

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

6742644 is a wasteful number, since it uses less digits than its factorization.

6742644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29599 (or 29597 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 6742644 is about 2596.6601625935. The cubic root of 6742644 is about 188.9194808327.

The spelling of 6742644 in words is "six million, seven hundred forty-two thousand, six hundred forty-four".