1389610738 has 16 divisors (see below), whose sum is σ = 2096789760. Its totient is φ = 690693696.

The previous prime is 1389610693. The next prime is 1389610811. The reversal of 1389610738 is 8370169831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239095 + ... + 244837.

It is an arithmetic number, because the mean of its divisors is an integer number (131049360).

Almost surely, 2^1389610738 is an apocalyptic number.

1389610738 is a deficient number, since it is larger than the sum of its proper divisors (707179022).

1389610738 is a wasteful number, since it uses less digits than its factorization.

1389610738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1389610738 is about 37277.4829890646. The cubic root of 1389610738 is about 1115.9148418253.

The spelling of 1389610738 in words is "one billion, three hundred eighty-nine million, six hundred ten thousand, seven hundred thirty-eight".