4045212 has 36 divisors (see below), whose sum is σ = 10286640. Its totient is φ = 1340352.

The previous prime is 4045163. The next prime is 4045213. The reversal of 4045212 is 2125404.

It is a tau number, because it is divible by the number of its divisors (36).

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 (4045213) 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, 11089 + ... + 11447.

It is an arithmetic number, because the mean of its divisors is an integer number (285740).

Almost surely, 2^4045212 is an apocalyptic number.

It is an amenable number.

4045212 is an abundant number, since it is smaller than the sum of its proper divisors (6241428).

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

4045212 is a wasteful number, since it uses less digits than its factorization.

4045212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 677 counting only the distinct ones).

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

The square root of 4045212 is about 2011.2712397884. The cubic root of 4045212 is about 159.3359456786.

The spelling of 4045212 in words is "four million, forty-five thousand, two hundred twelve".