42578716 has 12 divisors (see below), whose sum is σ = 75919032. Its totient is φ = 20887568.

The previous prime is 42578713. The next prime is 42578719. The reversal of 42578716 is 61787524.

It is an interprime number because it is at equal distance from previous prime (42578713) and next prime (42578719).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42578713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100210 + ... + 100633.

It is an arithmetic number, because the mean of its divisors is an integer number (6326586).

Almost surely, 2^42578716 is an apocalyptic number.

It is an amenable number.

42578716 is a deficient number, since it is larger than the sum of its proper divisors (33340316).

42578716 is a wasteful number, since it uses less digits than its factorization.

42578716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200900 (or 200898 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 42578716 is about 6525.2368539387. The cubic root of 42578716 is about 349.1919207783.

The spelling of 42578716 in words is "forty-two million, five hundred seventy-eight thousand, seven hundred sixteen".