3220074 has 80 divisors (see below), whose sum is σ = 8537760. Its totient is φ = 894240.

The previous prime is 3220051. The next prime is 3220081. The reversal of 3220074 is 4700223.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23097 + ... + 23235.

It is an arithmetic number, because the mean of its divisors is an integer number (106722).

Almost surely, 2^3220074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4268880).

3220074 is an abundant number, since it is smaller than the sum of its proper divisors (5317686).

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

3220074 is a wasteful number, since it uses less digits than its factorization.

3220074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3220074 is about 1794.4564636680. The cubic root of 3220074 is about 147.6687563859.

Adding to 3220074 its reverse (4700223), we get a palindrome (7920297).

The spelling of 3220074 in words is "three million, two hundred twenty thousand, seventy-four".