6626740 has 12 divisors (see below), whose sum is σ = 13916196. Its totient is φ = 2650688.

The previous prime is 6626729. The next prime is 6626743. The reversal of 6626740 is 476266.

It can be written as a sum of positive squares in 2 ways, for example, as 3709476 + 2917264 = 1926^2 + 1708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6626743) 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, 165649 + ... + 165688.

It is an arithmetic number, because the mean of its divisors is an integer number (1159683).

Almost surely, 2^6626740 is an apocalyptic number.

It is an amenable number.

6626740 is an abundant number, since it is smaller than the sum of its proper divisors (7289456).

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

6626740 is a wasteful number, since it uses less digits than its factorization.

6626740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331346 (or 331344 counting only the distinct ones).

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

The square root of 6626740 is about 2574.2455205361. The cubic root of 6626740 is about 187.8307288811.

The spelling of 6626740 in words is "six million, six hundred twenty-six thousand, seven hundred forty".