6349420 has 144 divisors (see below), whose sum is σ = 18385920. Its totient is φ = 1814400.

The previous prime is 6349397. The next prime is 6349433. The reversal of 6349420 is 249436.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204805 + ... + 204835.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

Almost surely, 2^6349420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6349420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9192960).

6349420 is an abundant number, since it is smaller than the sum of its proper divisors (12036500).

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

6349420 is a wasteful number, since it uses less digits than its factorization.

6349420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6349420 is about 2519.8055480533. The cubic root of 6349420 is about 185.1731517415.

The spelling of 6349420 in words is "six million, three hundred forty-nine thousand, four hundred twenty".