1389607038 has 12 divisors (see below), whose sum is σ = 3010815288. Its totient is φ = 463202340.

The previous prime is 1389607027. The next prime is 1389607069. The reversal of 1389607038 is 8307069831.

It is a happy number.

1389607038 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 607 + 0 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1389606984 and 1389607002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38600178 + ... + 38600213.

It is an arithmetic number, because the mean of its divisors is an integer number (250901274).

Almost surely, 2^1389607038 is an apocalyptic number.

1389607038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1389607038 is an abundant number, since it is smaller than the sum of its proper divisors (1621208250).

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

1389607038 is a wasteful number, since it uses less digits than its factorization.

1389607038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77200399 (or 77200396 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1389607038 is about 37277.4333612173. The cubic root of 1389607038 is about 1115.9138514068.

The spelling of 1389607038 in words is "one billion, three hundred eighty-nine million, six hundred seven thousand, thirty-eight".