71934072 has 128 divisors (see below), whose sum is σ = 220838400. Its totient is φ = 19058688.

The previous prime is 71934061. The next prime is 71934077. The reversal of 71934072 is 27043917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71934077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254043 + ... + 254325.

It is an arithmetic number, because the mean of its divisors is an integer number (1725300).

Almost surely, 2^71934072 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 71934072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110419200).

71934072 is an abundant number, since it is smaller than the sum of its proper divisors (148904328).

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

71934072 is a wasteful number, since it uses less digits than its factorization.

71934072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 71934072 is about 8481.3956398697. The cubic root of 71934072 is about 415.8897482729.

Adding to 71934072 its reverse (27043917), we get a palindrome (98977989).

The spelling of 71934072 in words is "seventy-one million, nine hundred thirty-four thousand, seventy-two".