71750220 has 24 divisors (see below), whose sum is σ = 200900784. Its totient is φ = 19133376.

The previous prime is 71750219. The next prime is 71750227. The reversal of 71750220 is 2205717.

It is not an unprimeable number, because it can be changed into a prime (71750227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597859 + ... + 597978.

It is an arithmetic number, because the mean of its divisors is an integer number (8370866).

Almost surely, 2^71750220 is an apocalyptic number.

It is an amenable number.

71750220 is an abundant number, since it is smaller than the sum of its proper divisors (129150564).

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

71750220 is a wasteful number, since it uses less digits than its factorization.

71750220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195849 (or 1195847 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 71750220 is about 8470.5501592281. The cubic root of 71750220 is about 415.5351300592.

Adding to 71750220 its reverse (2205717), we get a palindrome (73955937).

The spelling of 71750220 in words is "seventy-one million, seven hundred fifty thousand, two hundred twenty".