32720422 has 16 divisors (see below), whose sum is σ = 56639232. Its totient is φ = 13886280.

The previous prime is 32720417. The next prime is 32720437. The reversal of 32720422 is 22402723.

It is a junction number, because it is equal to n+sod(n) for n = 32720393 and 32720402.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 9904 + ... + 12787.

It is an arithmetic number, because the mean of its divisors is an integer number (3539952).

Almost surely, 2^32720422 is an apocalyptic number.

32720422 is a deficient number, since it is larger than the sum of its proper divisors (23918810).

32720422 is a wasteful number, since it uses less digits than its factorization.

32720422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22803.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 32720422 is about 5720.1767455211. The cubic root of 32720422 is about 319.8450486791.

The spelling of 32720422 in words is "thirty-two million, seven hundred twenty thousand, four hundred twenty-two".