71441970 has 32 divisors (see below), whose sum is σ = 172041408. Its totient is φ = 18986688.

The previous prime is 71441947. The next prime is 71441971. The reversal of 71441970 is 7914417.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71441971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5332 + ... + 13088.

It is an arithmetic number, because the mean of its divisors is an integer number (5376294).

Almost surely, 2^71441970 is an apocalyptic number.

71441970 is an abundant number, since it is smaller than the sum of its proper divisors (100599438).

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

71441970 is a wasteful number, since it uses less digits than its factorization.

71441970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 71441970 is about 8452.3351802919. The cubic root of 71441970 is about 414.9392082047.

The spelling of 71441970 in words is "seventy-one million, four hundred forty-one thousand, nine hundred seventy".