71378356 has 24 divisors (see below), whose sum is σ = 144365760. Its totient is φ = 30245952.

The previous prime is 71378353. The next prime is 71378369. The reversal of 71378356 is 65387317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71378353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11830 + ... + 16813.

It is an arithmetic number, because the mean of its divisors is an integer number (6015240).

Almost surely, 2^71378356 is an apocalyptic number.

It is an amenable number.

71378356 is an abundant number, since it is smaller than the sum of its proper divisors (72987404).

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

71378356 is a wasteful number, since it uses less digits than its factorization.

71378356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28743 (or 28741 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 71378356 is about 8448.5712401565. The cubic root of 71378356 is about 414.8160136677.

The spelling of 71378356 in words is "seventy-one million, three hundred seventy-eight thousand, three hundred fifty-six".