6402349 has 4 divisors (see below), whose sum is σ = 6680736. Its totient is φ = 6123964.

The previous prime is 6402329. The next prime is 6402379. The reversal of 6402349 is 9432046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6402349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402329) 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 3 ways as a sum of consecutive naturals, for example, 139159 + ... + 139204.

It is an arithmetic number, because the mean of its divisors is an integer number (1670184).

Almost surely, 2^6402349 is an apocalyptic number.

It is an amenable number.

6402349 is a deficient number, since it is larger than the sum of its proper divisors (278387).

6402349 is a wasteful number, since it uses less digits than its factorization.

6402349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278386.

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

The square root of 6402349 is about 2530.2863474318. The cubic root of 6402349 is about 185.6862653414.

The spelling of 6402349 in words is "six million, four hundred two thousand, three hundred forty-nine".