42717378 has 32 divisors (see below), whose sum is σ = 93441600. Its totient is φ = 12911360.

The previous prime is 42717359. The next prime is 42717403. The reversal of 42717378 is 87371724.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 40198 + ... + 41246.

It is an arithmetic number, because the mean of its divisors is an integer number (2920050).

Almost surely, 2^42717378 is an apocalyptic number.

42717378 is an abundant number, since it is smaller than the sum of its proper divisors (50724222).

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

42717378 is a wasteful number, since it uses less digits than its factorization.

42717378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682.

The product of its digits is 65856, while the sum is 39.

The square root of 42717378 is about 6535.8532725269. The cubic root of 42717378 is about 349.5705699279.

The spelling of 42717378 in words is "forty-two million, seven hundred seventeen thousand, three hundred seventy-eight".