32640266 has 16 divisors (see below), whose sum is σ = 51274944. Its totient is φ = 15553824.

The previous prime is 32640263. The next prime is 32640269. The reversal of 32640266 is 66204623.

It is an interprime number because it is at equal distance from previous prime (32640263) and next prime (32640269).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32640263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13265 + ... + 15531.

It is an arithmetic number, because the mean of its divisors is an integer number (3204684).

Almost surely, 2^32640266 is an apocalyptic number.

32640266 is a deficient number, since it is larger than the sum of its proper divisors (18634678).

32640266 is a wasteful number, since it uses less digits than its factorization.

32640266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 32640266 is about 5713.1660224432. The cubic root of 32640266 is about 319.5836577635.

Adding to 32640266 its reverse (66204623), we get a palindrome (98844889).

The spelling of 32640266 in words is "thirty-two million, six hundred forty thousand, two hundred sixty-six".