4638212 has 12 divisors (see below), whose sum is σ = 8594460. Its totient is φ = 2182656.

The previous prime is 4638211. The next prime is 4638239. The reversal of 4638212 is 2128364.

It can be written as a sum of positive squares in 2 ways, for example, as 2937796 + 1700416 = 1714^2 + 1304^2 .

It is a d-powerful number, because it can be written as 4¹¹ + 6⁷ + 3 + 8⁵ + 2⁷ + 1 + 2¹⁷ .

It is not an unprimeable number, because it can be changed into a prime (4638211) 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, 34037 + ... + 34172.

It is an arithmetic number, because the mean of its divisors is an integer number (716205).

Almost surely, 2^4638212 is an apocalyptic number.

It is an amenable number.

4638212 is a deficient number, since it is larger than the sum of its proper divisors (3956248).

4638212 is a wasteful number, since it uses less digits than its factorization.

4638212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68230 (or 68228 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 4638212 is about 2153.6508537829. The cubic root of 4638212 is about 166.7695915369.

The spelling of 4638212 in words is "four million, six hundred thirty-eight thousand, two hundred twelve".