32728242 has 32 divisors (see below), whose sum is σ = 67417920. Its totient is φ = 10587200.

The previous prime is 32728229. The next prime is 32728243. The reversal of 32728242 is 24282723.

It is a super-2 number, since 2×32728242² = 2142275648821128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32728243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31609 + ... + 32627.

It is an arithmetic number, because the mean of its divisors is an integer number (2106810).

Almost surely, 2^32728242 is an apocalyptic number.

32728242 is an abundant number, since it is smaller than the sum of its proper divisors (34689678).

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

32728242 is a wasteful number, since it uses less digits than its factorization.

32728242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178.

The product of its digits is 10752, while the sum is 30.

The square root of 32728242 is about 5720.8602499974. The cubic root of 32728242 is about 319.8705270490.

The spelling of 32728242 in words is "thirty-two million, seven hundred twenty-eight thousand, two hundred forty-two".