32225720 has 32 divisors (see below), whose sum is σ = 73008000. Its totient is φ = 12801408.

The previous prime is 32225719. The next prime is 32225731. The reversal of 32225720 is 2752223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3257 + ... + 8663.

It is an arithmetic number, because the mean of its divisors is an integer number (2281500).

Almost surely, 2^32225720 is an apocalyptic number.

It is an amenable number.

32225720 is an abundant number, since it is smaller than the sum of its proper divisors (40782280).

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

32225720 is a wasteful number, since it uses less digits than its factorization.

32225720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5567 (or 5563 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 32225720 is about 5676.7702084900. The cubic root of 32225720 is about 318.2249374340.

Adding to 32225720 its reverse (2752223), we get a palindrome (34977943).

The spelling of 32225720 in words is "thirty-two million, two hundred twenty-five thousand, seven hundred twenty".