71043378 has 32 divisors (see below), whose sum is σ = 162653184. Its totient is φ = 20264592.

The previous prime is 71043377. The next prime is 71043397. The reversal of 71043378 is 87334017.

It is not an unprimeable number, because it can be changed into a prime (71043377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36301 + ... + 38207.

It is an arithmetic number, because the mean of its divisors is an integer number (5082912).

Almost surely, 2^71043378 is an apocalyptic number.

71043378 is an abundant number, since it is smaller than the sum of its proper divisors (91609806).

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

71043378 is a wasteful number, since it uses less digits than its factorization.

71043378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 71043378 is about 8428.7233908819. The cubic root of 71043378 is about 414.1660865970.

The spelling of 71043378 in words is "seventy-one million, forty-three thousand, three hundred seventy-eight".