32245728 has 24 divisors (see below), whose sum is σ = 84645288. Its totient is φ = 10748544.

The previous prime is 32245727. The next prime is 32245729. The reversal of 32245728 is 82754223.

It is an interprime number because it is at equal distance from previous prime (32245727) and next prime (32245729).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32245723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167851 + ... + 168042.

It is an arithmetic number, because the mean of its divisors is an integer number (3526887).

Almost surely, 2^32245728 is an apocalyptic number.

It is an amenable number.

32245728 is an abundant number, since it is smaller than the sum of its proper divisors (52399560).

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

32245728 is a wasteful number, since it uses less digits than its factorization.

32245728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335906 (or 335898 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 32245728 is about 5678.5322047163. The cubic root of 32245728 is about 318.2907826378.

The spelling of 32245728 in words is "thirty-two million, two hundred forty-five thousand, seven hundred twenty-eight".