61632228 has 96 divisors (see below), whose sum is σ = 171085824. Its totient is φ = 16904448.

The previous prime is 61632227. The next prime is 61632229. The reversal of 61632228 is 82223616.

It is an interprime number because it is at equal distance from previous prime (61632227) and next prime (61632229).

It is a junction number, because it is equal to n+sod(n) for n = 61632195 and 61632204.

It is not an unprimeable number, because it can be changed into a prime (61632227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264400 + ... + 264632.

It is an arithmetic number, because the mean of its divisors is an integer number (1782144).

Almost surely, 2^61632228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61632228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85542912).

61632228 is an abundant number, since it is smaller than the sum of its proper divisors (109453596).

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

61632228 is a wasteful number, since it uses less digits than its factorization.

61632228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 359 counting only the distinct ones).

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

The square root of 61632228 is about 7850.6195933824. The cubic root of 61632228 is about 395.0050269082.

The spelling of 61632228 in words is "sixty-one million, six hundred thirty-two thousand, two hundred twenty-eight".