1338707238 has 32 divisors (see below), whose sum is σ = 2922117120. Its totient is φ = 405488160.

The previous prime is 1338707221. The next prime is 1338707239. The reversal of 1338707238 is 8327078331.

It is a self number, because there is not a number n which added to its sum of digits gives 1338707238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338707239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272056 + ... + 276932.

It is an arithmetic number, because the mean of its divisors is an integer number (91316160).

Almost surely, 2^1338707238 is an apocalyptic number.

1338707238 is an abundant number, since it is smaller than the sum of its proper divisors (1583409882).

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

1338707238 is a wasteful number, since it uses less digits than its factorization.

1338707238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 1338707238 is about 36588.3483912570. The cubic root of 1338707238 is about 1102.1191210083.

The spelling of 1338707238 in words is "one billion, three hundred thirty-eight million, seven hundred seven thousand, two hundred thirty-eight".