32404420 has 24 divisors (see below), whose sum is σ = 69167448. Its totient is φ = 12748800.

The previous prime is 32404403. The next prime is 32404423. The reversal of 32404420 is 2440423.

It can be written as a sum of positive squares in 4 ways, for example, as 1557504 + 30846916 = 1248^2 + 5554^2 .

It is not an unprimeable number, because it can be changed into a prime (32404423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12061 + ... + 14500.

It is an arithmetic number, because the mean of its divisors is an integer number (2881977).

Almost surely, 2^32404420 is an apocalyptic number.

It is an amenable number.

32404420 is an abundant number, since it is smaller than the sum of its proper divisors (36763028).

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

32404420 is a wasteful number, since it uses less digits than its factorization.

32404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26631 (or 26629 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 32404420 is about 5692.4880324863. The cubic root of 32404420 is about 318.8120668576.

Adding to 32404420 its reverse (2440423), we get a palindrome (34844843).

The spelling of 32404420 in words is "thirty-two million, four hundred four thousand, four hundred twenty".