13402212 has 12 divisors (see below), whose sum is σ = 31271856. Its totient is φ = 4467400.

The previous prime is 13402189. The next prime is 13402223. The reversal of 13402212 is 21220431.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13402191 and 13402200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558414 + ... + 558437.

It is an arithmetic number, because the mean of its divisors is an integer number (2605988).

Almost surely, 2^13402212 is an apocalyptic number.

13402212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13402212 is an abundant number, since it is smaller than the sum of its proper divisors (17869644).

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

13402212 is a wasteful number, since it uses less digits than its factorization.

13402212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116858 (or 1116856 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 13402212 is about 3660.9031672526. The cubic root of 13402212 is about 237.5338426381.

Adding to 13402212 its reverse (21220431), we get a palindrome (34622643).

The spelling of 13402212 in words is "thirteen million, four hundred two thousand, two hundred twelve".