61938742 has 8 divisors (see below), whose sum is σ = 92961000. Its totient is φ = 30951744.

The previous prime is 61938739. The next prime is 61938757. The reversal of 61938742 is 24783916.

61938742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61938695 and 61938704.

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, 3867 + ... + 11782.

It is an arithmetic number, because the mean of its divisors is an integer number (11620125).

Almost surely, 2^61938742 is an apocalyptic number.

61938742 is a deficient number, since it is larger than the sum of its proper divisors (31022258).

61938742 is a wasteful number, since it uses less digits than its factorization.

61938742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17630.

The product of its digits is 72576, while the sum is 40.

The square root of 61938742 is about 7870.1170258135. The cubic root of 61938742 is about 395.6587671947.

The spelling of 61938742 in words is "sixty-one million, nine hundred thirty-eight thousand, seven hundred forty-two".