32421328 has 10 divisors (see below), whose sum is σ = 62816354. Its totient is φ = 16210656.

The previous prime is 32421313. The next prime is 32421331. The reversal of 32421328 is 82312423.

It can be written as a sum of positive squares in only one way, i.e., 30382144 + 2039184 = 5512^2 + 1428^2 .

It is a super-2 number, since 2×32421328² = 2102285018567168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013151 + ... + 1013182.

Almost surely, 2^32421328 is an apocalyptic number.

It is an amenable number.

32421328 is a deficient number, since it is larger than the sum of its proper divisors (30395026).

32421328 is a wasteful number, since it uses less digits than its factorization.

32421328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026341 (or 2026335 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 32421328 is about 5693.9729539224. The cubic root of 32421328 is about 318.8675072075.

The spelling of 32421328 in words is "thirty-two million, four hundred twenty-one thousand, three hundred twenty-eight".