6900440 has 32 divisors (see below), whose sum is σ = 15634080. Its totient is φ = 2740992.

The previous prime is 6900433. The next prime is 6900449. The reversal of 6900440 is 440096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6900449) 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 in 7 ways as a sum of consecutive naturals, for example, 6164 + ... + 7196.

It is an arithmetic number, because the mean of its divisors is an integer number (488565).

Almost surely, 2^6900440 is an apocalyptic number.

It is an amenable number.

6900440 is an abundant number, since it is smaller than the sum of its proper divisors (8733640).

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

6900440 is a wasteful number, since it uses less digits than its factorization.

6900440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 6900440 is about 2626.8688585462. The cubic root of 6900440 is about 190.3818727887.

The spelling of 6900440 in words is "six million, nine hundred thousand, four hundred forty".