6349449437 has 4 divisors (see below), whose sum is σ = 6625512480. Its totient is φ = 6073386396.

The previous prime is 6349449427. The next prime is 6349449487. The reversal of 6349449437 is 7349449436.

It is a happy number.

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 not a de Polignac number, because 6349449437 - 2⁸ = 6349449181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6349449427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138031487 + ... + 138031532.

It is an arithmetic number, because the mean of its divisors is an integer number (1656378120).

Almost surely, 2^6349449437 is an apocalyptic number.

It is an amenable number.

6349449437 is a deficient number, since it is larger than the sum of its proper divisors (276063043).

6349449437 is a wasteful number, since it uses less digits than its factorization.

6349449437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276063042.

The product of its digits is 7838208, while the sum is 53.

The square root of 6349449437 is about 79683.4326381589. The cubic root of 6349449437 is about 1851.7343790592.

Subtracting 6349449437 from its reverse (7349449436), we obtain a palindrome (999999999).

The spelling of 6349449437 in words is "six billion, three hundred forty-nine million, four hundred forty-nine thousand, four hundred thirty-seven".