6344540 has 12 divisors (see below), whose sum is σ = 13323576. Its totient is φ = 2537808.

The previous prime is 6344509. The next prime is 6344557. The reversal of 6344540 is 454436.

It is an Ulam number.

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, 158594 + ... + 158633.

It is an arithmetic number, because the mean of its divisors is an integer number (1110298).

Almost surely, 2^6344540 is an apocalyptic number.

It is an amenable number.

6344540 is an abundant number, since it is smaller than the sum of its proper divisors (6979036).

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

6344540 is a wasteful number, since it uses less digits than its factorization.

6344540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317236 (or 317234 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 6344540 is about 2518.8370332358. The cubic root of 6344540 is about 185.1256998176.

Adding to 6344540 its reverse (454436), we get a palindrome (6798976).

The spelling of 6344540 in words is "six million, three hundred forty-four thousand, five hundred forty".