42742461 has 8 divisors (see below), whose sum is σ = 57029920. Its totient is φ = 28474992.

The previous prime is 42742451. The next prime is 42742477. The reversal of 42742461 is 16424724.

42742461 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 not a de Polignac number, because 42742461 - 2⁹ = 42741949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42742421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1035 + ... + 9303.

It is an arithmetic number, because the mean of its divisors is an integer number (7128740).

Almost surely, 2^42742461 is an apocalyptic number.

It is an amenable number.

42742461 is a deficient number, since it is larger than the sum of its proper divisors (14287459).

42742461 is a wasteful number, since it uses less digits than its factorization.

42742461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995.

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

The square root of 42742461 is about 6537.7718681520. The cubic root of 42742461 is about 349.6389773956.

The spelling of 42742461 in words is "forty-two million, seven hundred forty-two thousand, four hundred sixty-one".