32212404 has 90 divisors (see below), whose sum is σ = 98006370. Its totient is φ = 9199008.

The previous prime is 32212403. The next prime is 32212409. The reversal of 32212404 is 40421223.

It can be written as a sum of positive squares in only one way, i.e., 32148900 + 63504 = 5670^2 + 252^2 .

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

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32212403) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 14862 + ... + 16890.

Almost surely, 2^32212404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32212404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49003185).

32212404 is an abundant number, since it is smaller than the sum of its proper divisors (65793966).

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

32212404 is a wasteful number, since it uses less digits than its factorization.

32212404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 32212404 is about 5675.5972372958. The cubic root of 32212404 is about 318.1811001196.

Adding to 32212404 its reverse (40421223), we get a palindrome (72633627).

It can be divided in two parts, 3221 and 2404, that added together give a square (5625 = 75²).

The spelling of 32212404 in words is "thirty-two million, two hundred twelve thousand, four hundred four".