6698240 has 36 divisors (see below), whose sum is σ = 16047444. Its totient is φ = 2678784.

The previous prime is 6698233. The next prime is 6698281. The reversal of 6698240 is 428966.

It can be written as a sum of positive squares in 2 ways, for example, as 4804864 + 1893376 = 2192^2 + 1376^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6698240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337 + ... + 3896.

Almost surely, 2^6698240 is an apocalyptic number.

It is an amenable number.

6698240 is an abundant number, since it is smaller than the sum of its proper divisors (9349204).

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

6698240 is an equidigital number, since it uses as much as digits as its factorization.

6698240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254 (or 5240 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 6698240 is about 2588.0958251193. The cubic root of 6698240 is about 188.5038544008.

The spelling of 6698240 in words is "six million, six hundred ninety-eight thousand, two hundred forty".