1399238822 has 16 divisors (see below), whose sum is σ = 2224577520. Its totient is φ = 657796608.

The previous prime is 1399238821. The next prime is 1399238837. The reversal of 1399238822 is 2288329931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399238821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13913 + ... + 54699.

It is an arithmetic number, because the mean of its divisors is an integer number (139036095).

Almost surely, 2^1399238822 is an apocalyptic number.

1399238822 is a deficient number, since it is larger than the sum of its proper divisors (825338698).

1399238822 is a wasteful number, since it uses less digits than its factorization.

1399238822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41815.

The product of its digits is 373248, while the sum is 47.

The square root of 1399238822 is about 37406.4008159032. The cubic root of 1399238822 is about 1118.4861621333.

The spelling of 1399238822 in words is "one billion, three hundred ninety-nine million, two hundred thirty-eight thousand, eight hundred twenty-two".