6340356 has 72 divisors (see below), whose sum is σ = 18162144. Its totient is φ = 1918080.

The previous prime is 6340343. The next prime is 6340361. The reversal of 6340356 is 6530436.

It is a super-2 number, since 2×6340356² = 80400228413472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10396 + ... + 10988.

It is an arithmetic number, because the mean of its divisors is an integer number (252252).

Almost surely, 2^6340356 is an apocalyptic number.

6340356 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6340356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9081072).

6340356 is an abundant number, since it is smaller than the sum of its proper divisors (11821788).

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

6340356 is a wasteful number, since it uses less digits than its factorization.

6340356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 6340356 is about 2518.0063542414. The cubic root of 6340356 is about 185.0849962490.

The spelling of 6340356 in words is "six million, three hundred forty thousand, three hundred fifty-six".