1389104604 has 18 divisors (see below), whose sum is σ = 3511347840. Its totient is φ = 463034856.

The previous prime is 1389104533. The next prime is 1389104623. The reversal of 1389104604 is 4064019831.

1389104604 is a `hidden beast` number, since 1 + 38 + 9 + 10 + 4 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1389104604² = 3859223201707993632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 38586239 = 1389104604 / (1 + 3 + 8 + 9 + 1 + 0 + 4 + 6 + 0 + 4).

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, 19293084 + ... + 19293155.

It is an arithmetic number, because the mean of its divisors is an integer number (195074880).

Almost surely, 2^1389104604 is an apocalyptic number.

It is an amenable number.

1389104604 is an abundant number, since it is smaller than the sum of its proper divisors (2122243236).

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

1389104604 is a wasteful number, since it uses less digits than its factorization.

1389104604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38586249 (or 38586244 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1389104604 is about 37270.6936345435. The cubic root of 1389104604 is about 1115.7793432014.

The spelling of 1389104604 in words is "one billion, three hundred eighty-nine million, one hundred four thousand, six hundred four".