4249156449 has 4 divisors (see below), whose sum is σ = 5665541936. Its totient is φ = 2832770964.

The previous prime is 4249156433. The next prime is 4249156493. The reversal of 4249156449 is 9446519424.

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 4249156449 - 2⁴ = 4249156433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4249156398 and 4249156407.

It is not an unprimeable number, because it can be changed into a prime (4249156049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708192739 + ... + 708192744.

It is an arithmetic number, because the mean of its divisors is an integer number (1416385484).

Almost surely, 2^4249156449 is an apocalyptic number.

It is an amenable number.

4249156449 is a deficient number, since it is larger than the sum of its proper divisors (1416385487).

4249156449 is a wasteful number, since it uses less digits than its factorization.

4249156449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416385486.

The product of its digits is 1244160, while the sum is 48.

The square root of 4249156449 is about 65185.5539901288. The cubic root of 4249156449 is about 1619.6987257918.

The spelling of 4249156449 in words is "four billion, two hundred forty-nine million, one hundred fifty-six thousand, four hundred forty-nine".