449858519 has 12 divisors (see below), whose sum is σ = 506538480. Its totient is φ = 398983200.

The previous prime is 449858509. The next prime is 449858531. The reversal of 449858519 is 915858944.

449858519 = T₅₂₀₅ + T₅₂₀₆ + ... + T₅₂₃₇.

It is not a de Polignac number, because 449858519 - 2⁴ = 449858503 is a prime.

It is a super-2 number, since 2×449858519² = 404745374233746722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449858509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40379 + ... + 50300.

It is an arithmetic number, because the mean of its divisors is an integer number (42211540).

Almost surely, 2^449858519 is an apocalyptic number.

449858519 is a deficient number, since it is larger than the sum of its proper divisors (56679961).

449858519 is a wasteful number, since it uses less digits than its factorization.

449858519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90742 (or 90731 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 53.

The square root of 449858519 is about 21209.8684342926. The cubic root of 449858519 is about 766.2291141794.

The spelling of 449858519 in words is "four hundred forty-nine million, eight hundred fifty-eight thousand, five hundred nineteen".