1144415389 has 16 divisors (see below), whose sum is σ = 1262600640. Its totient is φ = 1030803840.

The previous prime is 1144415381. The next prime is 1144415399. The reversal of 1144415389 is 9835144411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1144415389 - 2³ = 1144415381 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 (1144415381) 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, 99634 + ... + 110524.

It is an arithmetic number, because the mean of its divisors is an integer number (78912540).

Almost surely, 2^1144415389 is an apocalyptic number.

It is an amenable number.

1144415389 is a deficient number, since it is larger than the sum of its proper divisors (118185251).

1144415389 is a wasteful number, since it uses less digits than its factorization.

1144415389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100.

The product of its digits is 69120, while the sum is 40.

The square root of 1144415389 is about 33829.2091098802. The cubic root of 1144415389 is about 1045.9908762687.

The spelling of 1144415389 in words is "one billion, one hundred forty-four million, four hundred fifteen thousand, three hundred eighty-nine".