1338366253 has 6 divisors (see below), whose sum is σ = 1556875086. Its totient is φ = 1147171032.

The previous prime is 1338366221. The next prime is 1338366277. The reversal of 1338366253 is 3526638331.

It can be written as a sum of positive squares in only one way, i.e., 1335683209 + 2683044 = 36547^2 + 1638^2 .

It is not a de Polignac number, because 1338366253 - 2⁵ = 1338366221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338366203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13656750 + ... + 13656847.

It is an arithmetic number, because the mean of its divisors is an integer number (259479181).

Almost surely, 2^1338366253 is an apocalyptic number.

It is an amenable number.

1338366253 is a deficient number, since it is larger than the sum of its proper divisors (218508833).

1338366253 is an equidigital number, since it uses as much as digits as its factorization.

1338366253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27313611 (or 27313604 counting only the distinct ones).

The product of its digits is 233280, while the sum is 40.

The square root of 1338366253 is about 36583.6883460375. The cubic root of 1338366253 is about 1102.0255386850.

The spelling of 1338366253 in words is "one billion, three hundred thirty-eight million, three hundred sixty-six thousand, two hundred fifty-three".