13220890738 has 8 divisors (see below), whose sum is σ = 21634184880. Its totient is φ = 6009495780.

The previous prime is 13220890721. The next prime is 13220890777. The reversal of 13220890738 is 83709802231.

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

It is a super-2 number, since 2×13220890738² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13220890694 and 13220890703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300474768 + ... + 300474811.

It is an arithmetic number, because the mean of its divisors is an integer number (2704273110).

Almost surely, 2^13220890738 is an apocalyptic number.

13220890738 is a deficient number, since it is larger than the sum of its proper divisors (8413294142).

13220890738 is a wasteful number, since it uses less digits than its factorization.

13220890738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600949592.

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

The spelling of 13220890738 in words is "thirteen billion, two hundred twenty million, eight hundred ninety thousand, seven hundred thirty-eight".