1354444309 has 16 divisors (see below), whose sum is σ = 1446336000. Its totient is φ = 1265520256.

The previous prime is 1354444283. The next prime is 1354444313. The reversal of 1354444309 is 9034444531.

It is a cyclic number.

It is not a de Polignac number, because 1354444309 - 2¹¹ = 1354442261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354444339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289017 + ... + 293665.

It is an arithmetic number, because the mean of its divisors is an integer number (90396000).

Almost surely, 2^1354444309 is an apocalyptic number.

It is an amenable number.

1354444309 is a deficient number, since it is larger than the sum of its proper divisors (91891691).

1354444309 is a wasteful number, since it uses less digits than its factorization.

1354444309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1354444309 is about 36802.7758328091. The cubic root of 1354444309 is about 1106.4209340427.

It can be divided in two parts, 135 and 4444309, that added together give a palindrome (4444444).

The spelling of 1354444309 in words is "one billion, three hundred fifty-four million, four hundred forty-four thousand, three hundred nine".