1389754829 has 16 divisors (see below), whose sum is σ = 1533168000. Its totient is φ = 1253869056.

The previous prime is 1389754799. The next prime is 1389754843. The reversal of 1389754829 is 9284579831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1389754829 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 (1389754859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94997 + ... + 108645.

It is an arithmetic number, because the mean of its divisors is an integer number (95823000).

Almost surely, 2^1389754829 is an apocalyptic number.

1389754829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1389754829 is a deficient number, since it is larger than the sum of its proper divisors (143413171).

1389754829 is a wasteful number, since it uses less digits than its factorization.

1389754829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13924.

The product of its digits is 4354560, while the sum is 56.

The square root of 1389754829 is about 37279.4156204198. The cubic root of 1389754829 is about 1115.9534108346.

The spelling of 1389754829 in words is "one billion, three hundred eighty-nine million, seven hundred fifty-four thousand, eight hundred twenty-nine".