42741878 has 8 divisors (see below), whose sum is σ = 64150968. Its totient is φ = 21358224.

The previous prime is 42741851. The next prime is 42741943. The reversal of 42741878 is 87814724.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376 + ... + 9347.

It is an arithmetic number, because the mean of its divisors is an integer number (8018871).

Almost surely, 2^42741878 is an apocalyptic number.

42741878 is a deficient number, since it is larger than the sum of its proper divisors (21409090).

42741878 is a wasteful number, since it uses less digits than its factorization.

42741878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12718.

The product of its digits is 100352, while the sum is 41.

The square root of 42741878 is about 6537.7272809440. The cubic root of 42741878 is about 349.6373877160.

The spelling of 42741878 in words is "forty-two million, seven hundred forty-one thousand, eight hundred seventy-eight".