32220404 has 6 divisors (see below), whose sum is σ = 56385714. Its totient is φ = 16110200.

The previous prime is 32220379. The next prime is 32220413. The reversal of 32220404 is 40402223.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 8988004 = 4820^2 + 2998^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4027547 + ... + 4027554.

It is an arithmetic number, because the mean of its divisors is an integer number (9397619).

Almost surely, 2^32220404 is an apocalyptic number.

It is an amenable number.

32220404 is a deficient number, since it is larger than the sum of its proper divisors (24165310).

32220404 is a wasteful number, since it uses less digits than its factorization.

32220404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8055105 (or 8055103 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 32220404 is about 5676.3019651883. The cubic root of 32220404 is about 318.2074381943.

Adding to 32220404 its reverse (40402223), we get a palindrome (72622627).

The spelling of 32220404 in words is "thirty-two million, two hundred twenty thousand, four hundred four".