61905244 has 12 divisors (see below), whose sum is σ = 110976768. Its totient is φ = 30197600.

The previous prime is 61905197. The next prime is 61905289. The reversal of 61905244 is 44250916.

61905244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 188572 + ... + 188899.

It is an arithmetic number, because the mean of its divisors is an integer number (9248064).

Almost surely, 2^61905244 is an apocalyptic number.

It is an amenable number.

61905244 is a deficient number, since it is larger than the sum of its proper divisors (49071524).

61905244 is a wasteful number, since it uses less digits than its factorization.

61905244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377516 (or 377514 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 61905244 is about 7867.9885612525. The cubic root of 61905244 is about 395.5874269910.

The spelling of 61905244 in words is "sixty-one million, nine hundred five thousand, two hundred forty-four".