32406404 has 12 divisors (see below), whose sum is σ = 56769804. Its totient is φ = 16186464.

The previous prime is 32406383. The next prime is 32406443. The reversal of 32406404 is 40460423.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10876804 + 21529600 = 3298^2 + 4640^2 .

It is a super-2 number, since 2×32406404² = 2100350040422432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32406404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842 + ... + 8094.

It is an arithmetic number, because the mean of its divisors is an integer number (4730817).

Almost surely, 2^32406404 is an apocalyptic number.

It is an amenable number.

32406404 is a deficient number, since it is larger than the sum of its proper divisors (24363400).

32406404 is a wasteful number, since it uses less digits than its factorization.

32406404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374 (or 8372 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 32406404 is about 5692.6622945683. The cubic root of 32406404 is about 318.8185732769.

Adding to 32406404 its reverse (40460423), we get a palindrome (72866827).

The spelling of 32406404 in words is "thirty-two million, four hundred six thousand, four hundred four".