1384230749 has 4 divisors (see below), whose sum is σ = 1510069920. Its totient is φ = 1258391580.

The previous prime is 1384230721. The next prime is 1384230803. The reversal of 1384230749 is 9470324831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1384230749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384230649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62919569 + ... + 62919590.

It is an arithmetic number, because the mean of its divisors is an integer number (377517480).

Almost surely, 2^1384230749 is an apocalyptic number.

It is an amenable number.

1384230749 is a deficient number, since it is larger than the sum of its proper divisors (125839171).

1384230749 is a wasteful number, since it uses less digits than its factorization.

1384230749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125839170.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1384230749 is about 37205.2516319941. The cubic root of 1384230749 is about 1114.4728614838.

The spelling of 1384230749 in words is "one billion, three hundred eighty-four million, two hundred thirty thousand, seven hundred forty-nine".