449935643 has 4 divisors (see below), whose sum is σ = 464449728. Its totient is φ = 435421560.

The previous prime is 449935631. The next prime is 449935649. The reversal of 449935643 is 346539944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449935643 - 2⁶ = 449935579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449935649) 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, 7256996 + ... + 7257057.

It is an arithmetic number, because the mean of its divisors is an integer number (116112432).

Almost surely, 2^449935643 is an apocalyptic number.

449935643 is a deficient number, since it is larger than the sum of its proper divisors (14514085).

449935643 is a wasteful number, since it uses less digits than its factorization.

449935643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14514084.

The product of its digits is 1399680, while the sum is 47.

The square root of 449935643 is about 21211.6864723199. The cubic root of 449935643 is about 766.2728992622.

The spelling of 449935643 in words is "four hundred forty-nine million, nine hundred thirty-five thousand, six hundred forty-three".