71126240 has 24 divisors (see below), whose sum is σ = 168036120. Its totient is φ = 28450432.

The previous prime is 71126239. The next prime is 71126243. The reversal of 71126240 is 4262117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71126243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222110 + ... + 222429.

It is an arithmetic number, because the mean of its divisors is an integer number (7001505).

Almost surely, 2^71126240 is an apocalyptic number.

It is an amenable number.

71126240 is an abundant number, since it is smaller than the sum of its proper divisors (96909880).

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

71126240 is a wasteful number, since it uses less digits than its factorization.

71126240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444554 (or 444546 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 71126240 is about 8433.6374121728. The cubic root of 71126240 is about 414.3270459868.

Adding to 71126240 its reverse (4262117), we get a palindrome (75388357).

The spelling of 71126240 in words is "seventy-one million, one hundred twenty-six thousand, two hundred forty".