61372228 has 12 divisors (see below), whose sum is σ = 107687440. Its totient is φ = 30604392.

The previous prime is 61372217. The next prime is 61372231. The reversal of 61372228 is 82227316.

61372228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61372228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18726 + ... + 21757.

Almost surely, 2^61372228 is an apocalyptic number.

It is an amenable number.

61372228 is a deficient number, since it is larger than the sum of its proper divisors (46315212).

61372228 is a wasteful number, since it uses less digits than its factorization.

61372228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40866 (or 40864 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 61372228 is about 7834.0428898494. The cubic root of 61372228 is about 394.4487915998.

The spelling of 61372228 in words is "sixty-one million, three hundred seventy-two thousand, two hundred twenty-eight".