4221036 has 18 divisors (see below), whose sum is σ = 10669932. Its totient is φ = 1407000.

The previous prime is 4221031. The next prime is 4221047. The reversal of 4221036 is 6301224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (4221031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58590 + ... + 58661.

It is an arithmetic number, because the mean of its divisors is an integer number (592774).

Almost surely, 2^4221036 is an apocalyptic number.

It is an amenable number.

4221036 is an abundant number, since it is smaller than the sum of its proper divisors (6448896).

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

4221036 is a wasteful number, since it uses less digits than its factorization.

4221036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117261 (or 117256 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4221036 is about 2054.5160013979. The cubic root of 4221036 is about 161.6117818910.

The spelling of 4221036 in words is "four million, two hundred twenty-one thousand, thirty-six".