1338908722 has 8 divisors (see below), whose sum is σ = 2028248172. Its totient is φ = 662826000.

The previous prime is 1338908713. The next prime is 1338908741. The reversal of 1338908722 is 2278098331.

It can be written as a sum of positive squares in 2 ways, for example, as 1338023241 + 885481 = 36579^2 + 941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3313929 + ... + 3314332.

Almost surely, 2^1338908722 is an apocalyptic number.

1338908722 is a deficient number, since it is larger than the sum of its proper divisors (689339450).

1338908722 is a wasteful number, since it uses less digits than its factorization.

1338908722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628364.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1338908722 is about 36591.1016778670. The cubic root of 1338908722 is about 1102.1744102264.

The spelling of 1338908722 in words is "one billion, three hundred thirty-eight million, nine hundred eight thousand, seven hundred twenty-two".