71378082 has 24 divisors (see below), whose sum is σ = 157276080. Its totient is φ = 23389080.

The previous prime is 71378081. The next prime is 71378093. The reversal of 71378082 is 28087317.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71378081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32544 + ... + 34667.

It is an arithmetic number, because the mean of its divisors is an integer number (6553170).

Almost surely, 2^71378082 is an apocalyptic number.

71378082 is an abundant number, since it is smaller than the sum of its proper divisors (85897998).

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

71378082 is a wasteful number, since it uses less digits than its factorization.

71378082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67278 (or 67275 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 71378082 is about 8448.5550243814. Note that the first 3 decimals coincide. The cubic root of 71378082 is about 414.8154828825.

The spelling of 71378082 in words is "seventy-one million, three hundred seventy-eight thousand, eighty-two".