1405234449 has 12 divisors (see below), whose sum is σ = 2035637136. Its totient is φ = 934121112.

The previous prime is 1405234403. The next prime is 1405234487. The reversal of 1405234449 is 9444325041.

It is not a de Polignac number, because 1405234449 - 2²¹ = 1403137297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1405234489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221859 + ... + 228104.

It is an arithmetic number, because the mean of its divisors is an integer number (169636428).

Almost surely, 2^1405234449 is an apocalyptic number.

It is an amenable number.

1405234449 is a deficient number, since it is larger than the sum of its proper divisors (630402687).

1405234449 is a wasteful number, since it uses less digits than its factorization.

1405234449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450316 (or 450313 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 1405234449 is about 37486.4568744500. The cubic root of 1405234449 is about 1120.0814271687.

The spelling of 1405234449 in words is "one billion, four hundred five million, two hundred thirty-four thousand, four hundred forty-nine".