13400770338 has 48 divisors (see below), whose sum is σ = 30589303680. Its totient is φ = 4228202592.

The previous prime is 13400770247. The next prime is 13400770349. The reversal of 13400770338 is 83307700431.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398695 + ... + 430997.

It is an arithmetic number, because the mean of its divisors is an integer number (637277160).

Almost surely, 2^13400770338 is an apocalyptic number.

13400770338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13400770338 is an abundant number, since it is smaller than the sum of its proper divisors (17188533342).

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

13400770338 is a wasteful number, since it uses less digits than its factorization.

13400770338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33543 (or 33540 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 13400770338 in words is "thirteen billion, four hundred million, seven hundred seventy thousand, three hundred thirty-eight".