1389036194 has 64 divisors (see below), whose sum is σ = 2693246976. Its totient is φ = 522206784.

The previous prime is 1389036193. The next prime is 1389036227. The reversal of 1389036194 is 4916309831.

It is not an unprimeable number, because it can be changed into a prime (1389036191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 698069 + ... + 700055.

It is an arithmetic number, because the mean of its divisors is an integer number (42081984).

Almost surely, 2^1389036194 is an apocalyptic number.

1389036194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1389036194 is a deficient number, since it is larger than the sum of its proper divisors (1304210782).

1389036194 is a wasteful number, since it uses less digits than its factorization.

1389036194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1389036194 is about 37269.7758780490. The cubic root of 1389036194 is about 1115.7610264339.

The spelling of 1389036194 in words is "one billion, three hundred eighty-nine million, thirty-six thousand, one hundred ninety-four".