32216628 has 24 divisors (see below), whose sum is σ = 79129120. Its totient is φ = 10173600.

The previous prime is 32216627. The next prime is 32216641. The reversal of 32216628 is 82661223.

It is a super-2 number, since 2×32216628² = 2075822239380768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32216595 and 32216604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32216621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70423 + ... + 70878.

Almost surely, 2^32216628 is an apocalyptic number.

32216628 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

32216628 is an abundant number, since it is smaller than the sum of its proper divisors (46912492).

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

32216628 is a wasteful number, since it uses less digits than its factorization.

32216628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141327 (or 141325 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 32216628 is about 5675.9693445261. The cubic root of 32216628 is about 318.1950071663.

The spelling of 32216628 in words is "thirty-two million, two hundred sixteen thousand, six hundred twenty-eight".