6744738 has 64 divisors (see below), whose sum is σ = 18127872. Its totient is φ = 1615680.

The previous prime is 6744667. The next prime is 6744757. The reversal of 6744738 is 8374476.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 6744696 and 6744705.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5445 + ... + 6567.

It is an arithmetic number, because the mean of its divisors is an integer number (283248).

Almost surely, 2^6744738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6744738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9063936).

6744738 is an abundant number, since it is smaller than the sum of its proper divisors (11383134).

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

6744738 is a wasteful number, since it uses less digits than its factorization.

6744738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its digits is 112896, while the sum is 39.

The square root of 6744738 is about 2597.0633415456. The cubic root of 6744738 is about 188.9390357950.

The spelling of 6744738 in words is "six million, seven hundred forty-four thousand, seven hundred thirty-eight".