6996440 has 32 divisors (see below), whose sum is σ = 17174160. Its totient is φ = 2544000.

The previous prime is 6996433. The next prime is 6996461. The reversal of 6996440 is 446996.

It is a junction number, because it is equal to n+sod(n) for n = 6996394 and 6996403.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 7511 + ... + 8390.

Almost surely, 2^6996440 is an apocalyptic number.

It is an amenable number.

6996440 is an abundant number, since it is smaller than the sum of its proper divisors (10177720).

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

6996440 is a wasteful number, since it uses less digits than its factorization.

6996440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15923 (or 15919 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 6996440 is about 2645.0784487421. The cubic root of 6996440 is about 191.2606840401.

The spelling of 6996440 in words is "six million, nine hundred ninety-six thousand, four hundred forty".