1389290375 has 32 divisors (see below), whose sum is σ = 1917504576. Its totient is φ = 996480000.

The previous prime is 1389290369. The next prime is 1389290381. The reversal of 1389290375 is 5730929831.

It is an interprime number because it is at equal distance from previous prime (1389290369) and next prime (1389290381).

It is not a de Polignac number, because 1389290375 - 2¹⁶ = 1389224839 is a prime.

It is a Duffinian number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 93455 + ... + 107295.

It is an arithmetic number, because the mean of its divisors is an integer number (59922018).

Almost surely, 2^1389290375 is an apocalyptic number.

1389290375 is a deficient number, since it is larger than the sum of its proper divisors (528214201).

1389290375 is a wasteful number, since it uses less digits than its factorization.

1389290375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13940 (or 13930 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 1389290375 is about 37273.1857372026. The cubic root of 1389290375 is about 1115.8290803256.

The spelling of 1389290375 in words is "one billion, three hundred eighty-nine million, two hundred ninety thousand, three hundred seventy-five".