449650749 has 4 divisors (see below), whose sum is σ = 599534336. Its totient is φ = 299767164.

The previous prime is 449650711. The next prime is 449650763. The reversal of 449650749 is 947056944.

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 not a de Polignac number, because 449650749 - 2⁹ = 449650237 is a prime.

It is a super-2 number, since 2×449650749² = 404371592152522002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449650698 and 449650707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449650549) 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, 74941789 + ... + 74941794.

It is an arithmetic number, because the mean of its divisors is an integer number (149883584).

Almost surely, 2^449650749 is an apocalyptic number.

It is an amenable number.

449650749 is a deficient number, since it is larger than the sum of its proper divisors (149883587).

449650749 is a wasteful number, since it uses less digits than its factorization.

449650749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149883586.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 449650749 is about 21204.9699127351. The cubic root of 449650749 is about 766.1111334279. Note that the first 4 decimals are identical.

The spelling of 449650749 in words is "four hundred forty-nine million, six hundred fifty thousand, seven hundred forty-nine".