71733740 has 72 divisors (see below), whose sum is σ = 171858960. Its totient is φ = 25069824.

The previous prime is 71733737. The next prime is 71733821. The reversal of 71733740 is 4733717.

It is a junction number, because it is equal to n+sod(n) for n = 71733697 and 71733706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63662 + ... + 64778.

It is an arithmetic number, because the mean of its divisors is an integer number (2386930).

Almost surely, 2^71733740 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 71733740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85929480).

71733740 is an abundant number, since it is smaller than the sum of its proper divisors (100125220).

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

71733740 is a wasteful number, since it uses less digits than its factorization.

71733740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 71733740 is about 8469.5773212127. The cubic root of 71733740 is about 415.5033134631.

The spelling of 71733740 in words is "seventy-one million, seven hundred thirty-three thousand, seven hundred forty".