1389419120 has 20 divisors (see below), whose sum is σ = 3230399640. Its totient is φ = 555767616.

The previous prime is 1389419113. The next prime is 1389419131. The reversal of 1389419120 is 219149831.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8683790 + ... + 8683949.

It is an arithmetic number, because the mean of its divisors is an integer number (161519982).

Almost surely, 2^1389419120 is an apocalyptic number.

1389419120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1389419120 is an abundant number, since it is smaller than the sum of its proper divisors (1840980520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1389419120 is a wasteful number, since it uses less digits than its factorization.

1389419120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17367752 (or 17367746 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 1389419120 is about 37274.9127430233. The cubic root of 1389419120 is about 1115.8635470769.

The spelling of 1389419120 in words is "one billion, three hundred eighty-nine million, four hundred nineteen thousand, one hundred twenty".