1389341760 has 56 divisors (see below), whose sum is σ = 4411163136. Its totient is φ = 370490880.

The previous prime is 1389341741. The next prime is 1389341771. The reversal of 1389341760 is 671439831.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722656 + ... + 724575.

Almost surely, 2^1389341760 is an apocalyptic number.

1389341760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1389341760 is an abundant number, since it is smaller than the sum of its proper divisors (3021821376).

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

1389341760 is a wasteful number, since it uses less digits than its factorization.

1389341760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447251 (or 1447241 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1389341760 is about 37273.8750333260. The cubic root of 1389341760 is about 1115.8428370299.

The spelling of 1389341760 in words is "one billion, three hundred eighty-nine million, three hundred forty-one thousand, seven hundred sixty".