4013212 has 12 divisors (see below), whose sum is σ = 8026480. Its totient is φ = 1719936.

The previous prime is 4013209. The next prime is 4013227. The reversal of 4013212 is 2123104.

4013212 is an admirable number.

It is a super-2 number, since 2×4013212² = 32211741113888, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4013192 and 4013201.

It is a congruent number.

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, 71637 + ... + 71692.

Almost surely, 2^4013212 is an apocalyptic number.

It is an amenable number.

4013212 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.

4013212 is a wasteful number, since it uses less digits than its factorization.

4013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143340 (or 143338 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4013212 is about 2003.3002770429. The cubic root of 4013212 is about 158.9146859801.

Adding to 4013212 its reverse (2123104), we get a palindrome (6136316).

It can be divided in two parts, 4013 and 212, that added together give a square (4225 = 65²).

The spelling of 4013212 in words is "four million, thirteen thousand, two hundred twelve".