6742660 has 24 divisors (see below), whose sum is σ = 14429016. Its totient is φ = 2645760.

The previous prime is 6742651. The next prime is 6742691. The reversal of 6742660 is 662476.

It can be written as a sum of positive squares in 4 ways, for example, as 602176 + 6140484 = 776^2 + 2478^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121 + ... + 4240.

It is an arithmetic number, because the mean of its divisors is an integer number (601209).

Almost surely, 2^6742660 is an apocalyptic number.

It is an amenable number.

6742660 is an abundant number, since it is smaller than the sum of its proper divisors (7686356).

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

6742660 is a wasteful number, since it uses less digits than its factorization.

6742660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423 (or 6421 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6742660 is about 2596.6632434723. The cubic root of 6742660 is about 188.9196302651.

The spelling of 6742660 in words is "six million, seven hundred forty-two thousand, six hundred sixty".