13780122 has 8 divisors (see below), whose sum is σ = 27560256. Its totient is φ = 4593372.

The previous prime is 13780103. The next prime is 13780127. The reversal of 13780122 is 22108731.

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

13780122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13780092 and 13780101.

It is not an unprimeable number, because it can be changed into a prime (13780127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148338 + ... + 1148349.

It is an arithmetic number, because the mean of its divisors is an integer number (3445032).

Almost surely, 2^13780122 is an apocalyptic number.

13780122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13780122 is a wasteful number, since it uses less digits than its factorization.

13780122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296692.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 13780122 is about 3712.1586711777. The cubic root of 13780122 is about 239.7458072591.

Adding to 13780122 its reverse (22108731), we get a palindrome (35888853).

The spelling of 13780122 in words is "thirteen million, seven hundred eighty thousand, one hundred twenty-two".