4004212 has 36 divisors (see below), whose sum is σ = 7680960. Its totient is φ = 1824912.

The previous prime is 4004207. The next prime is 4004213. The reversal of 4004212 is 2124004.

It is a junction number, because it is equal to n+sod(n) for n = 4004192 and 4004201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67839 + ... + 67897.

It is an arithmetic number, because the mean of its divisors is an integer number (213360).

Almost surely, 2^4004212 is an apocalyptic number.

It is an amenable number.

4004212 is a deficient number, since it is larger than the sum of its proper divisors (3676748).

4004212 is a wasteful number, since it uses less digits than its factorization.

4004212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4004212 is about 2001.0527229436. The cubic root of 4004212 is about 158.7958034282.

Adding to 4004212 its reverse (2124004), we get a palindrome (6128216).

It can be divided in two parts, 4004 and 212, that multiplied together give a palindrome (848848).

The spelling of 4004212 in words is "four million, four thousand, two hundred twelve".