32691940 has 12 divisors (see below), whose sum is σ = 68653116. Its totient is φ = 13076768.

The previous prime is 32691889. The next prime is 32691973. The reversal of 32691940 is 4919623.

It can be written as a sum of positive squares in 2 ways, for example, as 16434916 + 16257024 = 4054^2 + 4032^2 .

It is a junction number, because it is equal to n+sod(n) for n = 32691896 and 32691905.

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, 817279 + ... + 817318.

It is an arithmetic number, because the mean of its divisors is an integer number (5721093).

Almost surely, 2^32691940 is an apocalyptic number.

It is an amenable number.

32691940 is an abundant number, since it is smaller than the sum of its proper divisors (35961176).

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

32691940 is a wasteful number, since it uses less digits than its factorization.

32691940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634606 (or 1634604 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 32691940 is about 5717.6865951187. The cubic root of 32691940 is about 319.7522170400.

The spelling of 32691940 in words is "thirty-two million, six hundred ninety-one thousand, nine hundred forty".