1434505909 has 16 divisors (see below), whose sum is σ = 1600200000. Its totient is φ = 1280119680.

The previous prime is 1434505867. The next prime is 1434505921. The reversal of 1434505909 is 9095054341.

It is a de Polignac number, because none of the positive numbers 2^k-1434505909 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 (1434505949) 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, 9159 + ... + 54340.

It is an arithmetic number, because the mean of its divisors is an integer number (100012500).

Almost surely, 2^1434505909 is an apocalyptic number.

1434505909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1434505909 is a deficient number, since it is larger than the sum of its proper divisors (165694091).

1434505909 is a wasteful number, since it uses less digits than its factorization.

1434505909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63588.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 1434505909 is about 37874.8717357564. The cubic root of 1434505909 is about 1127.8052549825.

The spelling of 1434505909 in words is "one billion, four hundred thirty-four million, five hundred five thousand, nine hundred nine".