4405212 has 48 divisors (see below), whose sum is σ = 13054720. Its totient is φ = 1258416.

The previous prime is 4405199. The next prime is 4405217. The reversal of 4405212 is 2125044.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405217) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2158 + ... + 3669.

Almost surely, 2^4405212 is an apocalyptic number.

4405212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4405212 is an abundant number, since it is smaller than the sum of its proper divisors (8649508).

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

4405212 is a wasteful number, since it uses less digits than its factorization.

4405212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847 (or 5839 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4405212 is about 2098.8596904033. The cubic root of 4405212 is about 163.9289301421.

The spelling of 4405212 in words is "four million, four hundred five thousand, two hundred twelve".