3220402 has 8 divisors (see below), whose sum is σ = 4848876. Its totient is φ = 1604112.

The previous prime is 3220381. The next prime is 3220409. The reversal of 3220402 is 2040223.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 19881 = 1789^2 + 141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3220409) 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, 2353 + ... + 3460.

Almost surely, 2^3220402 is an apocalyptic number.

3220402 is a deficient number, since it is larger than the sum of its proper divisors (1628474).

3220402 is a wasteful number, since it uses less digits than its factorization.

3220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 3220402 is about 1794.5478539175. The cubic root of 3220402 is about 147.6737701120.

Adding to 3220402 its reverse (2040223), we get a palindrome (5260625).

It can be divided in two parts, 32 and 20402, that multiplied together give a square (652864 = 808²).

The spelling of 3220402 in words is "three million, two hundred twenty thousand, four hundred two".