1389089862 has 24 divisors (see below), whose sum is σ = 3017909856. Its totient is φ = 461766096.

The previous prime is 1389089857. The next prime is 1389089869. The reversal of 1389089862 is 2689809831.

It is a happy number.

It is a super-2 number, since 2×1389089862² = 3859141289422358088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1389089799 and 1389089808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389089869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98533 + ... + 111744.

It is an arithmetic number, because the mean of its divisors is an integer number (125746244).

Almost surely, 2^1389089862 is an apocalyptic number.

1389089862 is an abundant number, since it is smaller than the sum of its proper divisors (1628819994).

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

1389089862 is a wasteful number, since it uses less digits than its factorization.

1389089862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210652 (or 210649 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 1389089862 is about 37270.4958646917. The cubic root of 1389089862 is about 1115.7753960839.

The spelling of 1389089862 in words is "one billion, three hundred eighty-nine million, eighty-nine thousand, eight hundred sixty-two".