61744242 has 32 divisors (see below), whose sum is σ = 141990912. Its totient is φ = 17533584.

The previous prime is 61744223. The next prime is 61744253. The reversal of 61744242 is 24244716.

61744242 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 in 15 ways as a sum of consecutive naturals, for example, 2613 + ... + 11415.

It is an arithmetic number, because the mean of its divisors is an integer number (4437216).

Almost surely, 2^61744242 is an apocalyptic number.

61744242 is an abundant number, since it is smaller than the sum of its proper divisors (80246670).

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

61744242 is a wasteful number, since it uses less digits than its factorization.

61744242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8982.

The product of its digits is 10752, while the sum is 30.

The square root of 61744242 is about 7857.7504414431. The cubic root of 61744242 is about 395.2441837931.

Adding to 61744242 its reverse (24244716), we get a palindrome (85988958).

The spelling of 61744242 in words is "sixty-one million, seven hundred forty-four thousand, two hundred forty-two".