32666404 has 6 divisors (see below), whose sum is σ = 57166214. Its totient is φ = 16333200.

The previous prime is 32666323. The next prime is 32666411. The reversal of 32666404 is 40466623.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 12236004 = 4520^2 + 3498^2 .

It is a nialpdrome in base 7.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083297 + ... + 4083304.

Almost surely, 2^32666404 is an apocalyptic number.

It is an amenable number.

32666404 is a deficient number, since it is larger than the sum of its proper divisors (24499810).

32666404 is a wasteful number, since it uses less digits than its factorization.

32666404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166605 (or 8166603 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 32666404 is about 5715.4530879013. The cubic root of 32666404 is about 319.6689414731.

The spelling of 32666404 in words is "thirty-two million, six hundred sixty-six thousand, four hundred four".