61222444 has 6 divisors (see below), whose sum is σ = 107139284. Its totient is φ = 30611220.

The previous prime is 61222439. The next prime is 61222507. The reversal of 61222444 is 44422216.

It is a happy number.

61222444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 7652802 + ... + 7652809.

Almost surely, 2^61222444 is an apocalyptic number.

It is an amenable number.

61222444 is a deficient number, since it is larger than the sum of its proper divisors (45916840).

61222444 is a wasteful number, since it uses less digits than its factorization.

61222444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15305615 (or 15305613 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 61222444 is about 7824.4772349340. The cubic root of 61222444 is about 394.1276352183.

The spelling of 61222444 in words is "sixty-one million, two hundred twenty-two thousand, four hundred forty-four".