32428 has 18 divisors (see below), whose sum is σ = 63308. Its totient is φ = 14520.

The previous prime is 32423. The next prime is 32429. The reversal of 32428 is 82423.

It is a happy number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (32423) by changing a digit.

32428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451 + ... + 517.

2³²⁴²⁸ is an apocalyptic number.

It is an amenable number.

32428 is a deficient number, since it is larger than the sum of its proper divisors (30880).

32428 is a wasteful number, since it uses less digits than its factorization.

32428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 80 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 32428 is about 180.0777609812. The cubic root of 32428 is about 31.8889379004. Note that the first 3 decimals are identical.

The spelling of 32428 in words is "thirty-two thousand, four hundred twenty-eight".