6940424 has 8 divisors (see below), whose sum is σ = 13013310. Its totient is φ = 3470208.

The previous prime is 6940421. The next prime is 6940433. The reversal of 6940424 is 4240496.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 232324 = 2590^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6940421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433769 + ... + 433784.

Almost surely, 2^6940424 is an apocalyptic number.

It is an amenable number.

6940424 is a deficient number, since it is larger than the sum of its proper divisors (6072886).

6940424 is a wasteful number, since it uses less digits than its factorization.

6940424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867559 (or 867555 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 6940424 is about 2634.4684473343. The cubic root of 6940424 is about 190.7488819046.

The spelling of 6940424 in words is "six million, nine hundred forty thousand, four hundred twenty-four".