71382378 has 32 divisors (see below), whose sum is σ = 146499840. Its totient is φ = 23176640.

The previous prime is 71382349. The next prime is 71382413. The reversal of 71382378 is 87328317.

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, 75388 + ... + 76328.

It is an arithmetic number, because the mean of its divisors is an integer number (4578120).

Almost surely, 2^71382378 is an apocalyptic number.

71382378 is an abundant number, since it is smaller than the sum of its proper divisors (75117462).

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

71382378 is a wasteful number, since it uses less digits than its factorization.

71382378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262.

The product of its digits is 56448, while the sum is 39.

The square root of 71382378 is about 8448.8092652160. The cubic root of 71382378 is about 414.8238048188.

The spelling of 71382378 in words is "seventy-one million, three hundred eighty-two thousand, three hundred seventy-eight".