6440334 has 16 divisors (see below), whose sum is σ = 12915072. Its totient is φ = 2141048.

The previous prime is 6440327. The next prime is 6440341. The reversal of 6440334 is 4330446.

It is an interprime number because it is at equal distance from previous prime (6440327) and next prime (6440341).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (807192).

Almost surely, 2^6440334 is an apocalyptic number.

6440334 is an abundant number, since it is smaller than the sum of its proper divisors (6474738).

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

6440334 is a wasteful number, since it uses less digits than its factorization.

6440334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 6440334 is about 2537.7813144556. The cubic root of 6440334 is about 186.0527656980.

The spelling of 6440334 in words is "six million, four hundred forty thousand, three hundred thirty-four".