32640670 has 16 divisors (see below), whose sum is σ = 61845840. Its totient is φ = 12369024.

The previous prime is 32640649. The next prime is 32640677. The reversal of 32640670 is 7604623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32640677) 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, 85707 + ... + 86086.

It is an arithmetic number, because the mean of its divisors is an integer number (3865365).

Almost surely, 2^32640670 is an apocalyptic number.

32640670 is a deficient number, since it is larger than the sum of its proper divisors (29205170).

32640670 is a wasteful number, since it uses less digits than its factorization.

32640670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171819.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 32640670 is about 5713.2013792619. The cubic root of 32640670 is about 319.5849762910.

The spelling of 32640670 in words is "thirty-two million, six hundred forty thousand, six hundred seventy".