1389004722 has 48 divisors (see below), whose sum is σ = 3473525952. Its totient is φ = 392925600.

The previous prime is 1389004697. The next prime is 1389004733. The reversal of 1389004722 is 2274009831.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41848 + ... + 67299.

It is an arithmetic number, because the mean of its divisors is an integer number (72365124).

Almost surely, 2^1389004722 is an apocalyptic number.

1389004722 is an abundant number, since it is smaller than the sum of its proper divisors (2084521230).

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

1389004722 is a wasteful number, since it uses less digits than its factorization.

1389004722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109263 (or 109260 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1389004722 is about 37269.3536568586. The cubic root of 1389004722 is about 1115.7525996086.

The spelling of 1389004722 in words is "one billion, three hundred eighty-nine million, four thousand, seven hundred twenty-two".