71302938 has 48 divisors (see below), whose sum is σ = 171629280. Its totient is φ = 19667424.

The previous prime is 71302937. The next prime is 71302939. The reversal of 71302938 is 83920317.

It is an interprime number because it is at equal distance from previous prime (71302937) and next prime (71302939).

It is a junction number, because it is equal to n+sod(n) for n = 71302899 and 71302908.

It is not an unprimeable number, because it can be changed into a prime (71302937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4345 + ... + 12707.

It is an arithmetic number, because the mean of its divisors is an integer number (3575610).

Almost surely, 2^71302938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71302938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85814640).

71302938 is an abundant number, since it is smaller than the sum of its proper divisors (100326342).

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

71302938 is a wasteful number, since it uses less digits than its factorization.

71302938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8411 (or 8404 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 71302938 is about 8444.1067023102. The cubic root of 71302938 is about 414.6698647008.

The spelling of 71302938 in words is "seventy-one million, three hundred two thousand, nine hundred thirty-eight".