449990619 has 8 divisors (see below), whose sum is σ = 646140432. Its totient is φ = 276917280.

The previous prime is 449990609. The next prime is 449990647. The reversal of 449990619 is 916099944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 449990619 - 2⁴ = 449990603 is a prime.

It is a super-2 number, since 2×449990619² = 404983114376006322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449990609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5769072 + ... + 5769149.

It is an arithmetic number, because the mean of its divisors is an integer number (80767554).

Almost surely, 2^449990619 is an apocalyptic number.

449990619 is a deficient number, since it is larger than the sum of its proper divisors (196149813).

449990619 is a wasteful number, since it uses less digits than its factorization.

449990619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538237.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 449990619 is about 21212.9823221536. The cubic root of 449990619 is about 766.3041073574.

The spelling of 449990619 in words is "four hundred forty-nine million, nine hundred ninety thousand, six hundred nineteen".