71740928 has 80 divisors (see below), whose sum is σ = 168557664. Its totient is φ = 29859840.

The previous prime is 71740919. The next prime is 71740931. The reversal of 71740928 is 82904717.

It is a junction number, because it is equal to n+sod(n) for n = 71740891 and 71740900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132338 + ... + 132878.

Almost surely, 2^71740928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71740928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84278832).

71740928 is an abundant number, since it is smaller than the sum of its proper divisors (96816736).

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

71740928 is an equidigital number, since it uses as much as digits as its factorization.

71740928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 71740928 is about 8470.0016528924. The cubic root of 71740928 is about 415.5171913495.

The spelling of 71740928 in words is "seventy-one million, seven hundred forty thousand, nine hundred twenty-eight".