2449259905 has 4 divisors (see below), whose sum is σ = 2939111892. Its totient is φ = 1959407920.

The previous prime is 2449259899. The next prime is 2449259929. The reversal of 2449259905 is 5099529442.

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

It can be written as a sum of positive squares in 2 ways, for example, as 826217536 + 1623042369 = 28744^2 + 40287^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2449259905 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244925986 + ... + 244925995.

It is an arithmetic number, because the mean of its divisors is an integer number (734777973).

Almost surely, 2^2449259905 is an apocalyptic number.

It is an amenable number.

2449259905 is a deficient number, since it is larger than the sum of its proper divisors (489851987).

2449259905 is an equidigital number, since it uses as much as digits as its factorization.

2449259905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489851986.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 2449259905 is about 49489.9980299050. The cubic root of 2449259905 is about 1347.9639917430.

The spelling of 2449259905 in words is "two billion, four hundred forty-nine million, two hundred fifty-nine thousand, nine hundred five".