8429419449 has 24 divisors (see below), whose sum is σ = 13286774592. Its totient is φ = 5107180320.

The previous prime is 8429419441. The next prime is 8429419463. The reversal of 8429419449 is 9449149248.

It is a happy number.

It is not a de Polignac number, because 8429419449 - 2³ = 8429419441 is a prime.

It is a super-2 number, since 2×8429419449² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8429419395 and 8429419404.

It is not an unprimeable number, because it can be changed into a prime (8429419441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369787 + ... + 391919.

It is an arithmetic number, because the mean of its divisors is an integer number (553615608).

Almost surely, 2^8429419449 is an apocalyptic number.

It is an amenable number.

8429419449 is a deficient number, since it is larger than the sum of its proper divisors (4857355143).

8429419449 is a wasteful number, since it uses less digits than its factorization.

8429419449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25997 (or 25994 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 8429419449 is about 91811.8698698594. The cubic root of 8429419449 is about 2035.1631088688.

The spelling of 8429419449 in words is "eight billion, four hundred twenty-nine million, four hundred nineteen thousand, four hundred forty-nine".