1389958830 has 48 divisors (see below), whose sum is σ = 3891888000. Its totient is φ = 342143424.

The previous prime is 1389958769. The next prime is 1389958849. The reversal of 1389958830 is 388599831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 592830 + ... + 595169.

It is an arithmetic number, because the mean of its divisors is an integer number (81081000).

Almost surely, 2^1389958830 is an apocalyptic number.

1389958830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1389958830 is an abundant number, since it is smaller than the sum of its proper divisors (2501929170).

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

1389958830 is a wasteful number, since it uses less digits than its factorization.

1389958830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188025 (or 1188022 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 1389958830 is about 37282.1516278232. The cubic root of 1389958830 is about 1116.0080114660.

The spelling of 1389958830 in words is "one billion, three hundred eighty-nine million, nine hundred fifty-eight thousand, eight hundred thirty".