71950188 has 72 divisors (see below), whose sum is σ = 187799472. Its totient is φ = 21362688.

The previous prime is 71950183. The next prime is 71950201. The reversal of 71950188 is 88105917.

It is not an unprimeable number, because it can be changed into a prime (71950183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73156 + ... + 74132.

It is an arithmetic number, because the mean of its divisors is an integer number (2608326).

Almost surely, 2^71950188 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 71950188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93899736).

71950188 is an abundant number, since it is smaller than the sum of its proper divisors (115849284).

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

71950188 is a wasteful number, since it uses less digits than its factorization.

71950188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 71950188 is about 8482.3456661468. The cubic root of 71950188 is about 415.9208043892.

The spelling of 71950188 in words is "seventy-one million, nine hundred fifty thousand, one hundred eighty-eight".