1409448729 has 16 divisors (see below), whose sum is σ = 2024672832. Its totient is φ = 866989248.

The previous prime is 1409448727. The next prime is 1409448757. The reversal of 1409448729 is 9278449041.

It is not a de Polignac number, because 1409448729 - 2¹ = 1409448727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1409448727) 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 15 ways as a sum of consecutive naturals, for example, 109459 + ... + 121655.

It is an arithmetic number, because the mean of its divisors is an integer number (126542052).

Almost surely, 2^1409448729 is an apocalyptic number.

It is an amenable number.

1409448729 is a deficient number, since it is larger than the sum of its proper divisors (615224103).

1409448729 is a wasteful number, since it uses less digits than its factorization.

1409448729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15176.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1409448729 is about 37542.6254942299. The cubic root of 1409448729 is about 1121.2000129590.

The spelling of 1409448729 in words is "one billion, four hundred nine million, four hundred forty-eight thousand, seven hundred twenty-nine".